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52921212925 = 52717831072003
BaseRepresentation
bin110001010010010110…
…011001111111111101
312001121011121011102011
4301102112121333331
51331340312303200
640151153131221
73552302613340
oct612226317775
9161534534364
1052921212925
1120497710609
12a30b259b11
134cb5029c99
1427c06a8457
15159b0745ba
hexc52599ffd

52921212925 has 96 divisors (see below), whose sum is σ = 81156805632. Its totient is φ = 33410657280.

The previous prime is 52921212913. The next prime is 52921212937.

52921212925 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (52921212913) and next prime (52921212937).

It is not a de Polignac number, because 52921212925 - 211 = 52921210877 is a prime.

It is a super-3 number, since 3×529212129253 (a number of 33 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26419974 + ... + 26421976.

It is an arithmetic number, because the mean of its divisors is an integer number (845383392).

Almost surely, 252921212925 is an apocalyptic number.

It is an amenable number.

52921212925 is a deficient number, since it is larger than the sum of its proper divisors (28235592707).

52921212925 is a wasteful number, since it uses less digits than its factorization.

52921212925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227 (or 2222 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The spelling of 52921212925 in words is "fifty-two billion, nine hundred twenty-one million, two hundred twelve thousand, nine hundred twenty-five".

Divisors: 1 5 7 17 25 35 83 85 107 119 175 415 425 535 581 595 749 1411 1819 2003 2075 2675 2905 2975 3745 7055 8881 9095 9877 10015 12733 14021 14525 18725 34051 35275 44405 45475 49385 50075 62167 63665 70105 150977 166249 170255 214321 222025 238357 246925 310835 318325 350525 754885 831245 851275 1056839 1071605 1163743 1191785 1500247 1554175 2826233 3643457 3774425 4156225 5284195 5358025 5818715 5958925 7501235 14131165 17788643 18217285 19783631 25504199 26420975 29093575 37506175 70655825 88943215 91086425 98918155 124520501 127520995 302406931 444716075 494590775 622602505 637604975 1512034655 2116848517 3113012525 7560173275 10584242585 52921212925