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51055003125 = 325571731499
BaseRepresentation
bin101111100011000111…
…011000010111110101
311212210002222212211200
4233203013120113311
51314030040100000
635242045523113
73455122236420
oct574307302765
9155702885750
1051055003125
111a71a244565
129a8a273499
134a784c7629
1426848b89b7
1514dc2dd500
hexbe31d85f5

51055003125 has 144 divisors (see below), whose sum is σ = 106024464000. Its totient is φ = 23189040000.

The previous prime is 51055003117. The next prime is 51055003133. The reversal of 51055003125 is 52130055015.

51055003125 is a `hidden beast` number, since 5 + 105 + 500 + 31 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (51055003117) and next prime (51055003133).

It is not a de Polignac number, because 51055003125 - 23 = 51055003117 is a prime.

It is a super-2 number, since 2×510550031252 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 34058626 + ... + 34060124.

It is an arithmetic number, because the mean of its divisors is an integer number (736281000).

Almost surely, 251055003125 is an apocalyptic number.

It is an amenable number.

51055003125 is an abundant number, since it is smaller than the sum of its proper divisors (54969460875).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51055003125 is a wasteful number, since it uses less digits than its factorization.

51055003125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 51055003125 in words is "fifty-one billion, fifty-five million, three thousand, one hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 45 63 75 105 125 173 175 225 315 375 519 525 625 865 875 1125 1211 1499 1557 1575 1875 2595 2625 3125 3633 4325 4375 4497 5625 6055 7495 7785 7875 9375 10493 10899 12975 13125 13491 18165 21625 21875 22485 28125 30275 31479 37475 38925 39375 52465 54495 64875 65625 67455 90825 94437 108125 112425 151375 157395 187375 194625 196875 259327 262325 272475 324375 337275 454125 472185 540625 562125 756875 777981 786975 936875 973125 1296635 1311625 1362375 1621875 1686375 1815289 2270625 2333943 2360925 2810625 3784375 3889905 3934875 4684375 4865625 5445867 6483175 6558125 6811875 8431875 9076445 11353125 11669715 11804625 14053125 16337601 19449525 19674375 27229335 32415875 32790625 34059375 42159375 45382225 58348575 59023125 81688005 97247625 98371875 136146675 162079375 226911125 291742875 295115625 408440025 486238125 680733375 810396875 1134555625 1458714375 2042200125 2431190625 3403666875 5672778125 7293571875 10211000625 17018334375 51055003125