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50757837025 = 52724121572
BaseRepresentation
bin101111010001011001…
…110010000011100001
311212000101211021120211
4233101121302003201
51312423001241100
635152352334121
73444553332100
oct572131620341
9155011737524
1050757837025
111a587526245
129a06844341
134a2ba7c6bc
142657242037
1514c118e1ba
hexbd16720e1

50757837025 has 81 divisors (see below), whose sum is σ = 75525928587. Its totient is φ = 33740179200.

The previous prime is 50757837007. The next prime is 50757837041. The reversal of 50757837025 is 52073875705.

The square root of 50757837025 is 225295.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 49853511841 + 904325184 = 223279^2 + 30072^2 .

It is not a de Polignac number, because 50757837025 - 213 = 50757828833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50757837025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 323298247 + ... + 323298403.

Almost surely, 250757837025 is an apocalyptic number.

50757837025 is the 225295-th square number.

50757837025 is the 112648-th centered octagonal number.

It is an amenable number.

50757837025 is a deficient number, since it is larger than the sum of its proper divisors (24768091562).

50757837025 is an equidigital number, since it uses as much as digits as its factorization.

50757837025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 2058000, while the sum is 49.

Multiplying 50757837025 by its sum of digits (49), we get a square (2487134014225 = 15770652).

50757837025 divided by its sum of digits (49) gives a square (1035874225 = 321852).

The spelling of 50757837025 in words is "fifty billion, seven hundred fifty-seven million, eight hundred thirty-seven thousand, twenty-five".

Divisors: 1 5 7 25 35 41 49 157 175 205 245 287 785 1025 1099 1225 1435 1681 2009 3925 5495 6437 7175 7693 8405 10045 11767 24649 27475 32185 38465 42025 45059 50225 58835 82369 123245 160925 172543 192325 225295 263917 294175 315413 411845 616225 862715 1010609 1126475 1207801 1319585 1577065 1847419 2059225 4313575 5053045 6039005 6597925 7074263 7885325 9237095 12931933 25265225 30195025 35371315 41434969 46185475 49519841 64659665 176856575 207174845 247599205 290044783 323298325 1035874225 1237996025 1450223915 2030313481 7251119575 10151567405 50757837025