51625800936 has 24 divisors (see below), whose sum is σ = 139819877730. Its totient is φ = 17208600288.

The previous prime is 51625800881. The next prime is 51625800937. The reversal of 51625800936 is 63900852615.

51625800936 is a `hidden beast` number, since 5 + 1 + 62 + 580 + 0 + 9 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47842812900 + 3782988036 = 218730^2 + 61506^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 51625800891 and 51625800900.

It is not an unprimeable number, because it can be changed into a prime (51625800937) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358512435 + ... + 358512578.

Almost surely, 2^51625800936 is an apocalyptic number.

It is an amenable number.

51625800936 is an abundant number, since it is smaller than the sum of its proper divisors (88194076794).

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

51625800936 is a wasteful number, since it uses less digits than its factorization.

51625800936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717025025 (or 717025018 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 51625800936 in words is "fifty-one billion, six hundred twenty-five million, eight hundred thousand, nine hundred thirty-six".