51625621760 has 72 divisors (see below), whose sum is σ = 130933640376. Its totient is φ = 19435520000.

The previous prime is 51625621741. The next prime is 51625621763. The reversal of 51625621760 is 6712652615.

It can be written as a sum of positive squares in 4 ways, for example, as 8175053056 + 43450568704 = 90416^2 + 208448^2 .

It is not an unprimeable number, because it can be changed into a prime (51625621763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1164491 + ... + 1208010.

It is an arithmetic number, because the mean of its divisors is an integer number (1818522783).

Almost surely, 2^51625621760 is an apocalyptic number.

It is an amenable number.

51625621760 is an abundant number, since it is smaller than the sum of its proper divisors (79308018616).

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

51625621760 is a wasteful number, since it uses less digits than its factorization.

51625621760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372539 (or 2372525 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 51625621760 in words is "fifty-one billion, six hundred twenty-five million, six hundred twenty-one thousand, seven hundred sixty".