51040031025 has 12 divisors (see below), whose sum is σ = 84386184752. Its totient is φ = 27221349840.

The previous prime is 51040030997. The next prime is 51040031033. The reversal of 51040031025 is 52013004015.

It is not a de Polignac number, because 51040031025 - 2⁷ = 51040030897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51040030992 and 51040031010.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340266799 + ... + 340266948.

Almost surely, 2^51040031025 is an apocalyptic number.

It is an amenable number.

51040031025 is a deficient number, since it is larger than the sum of its proper divisors (33346153727).

51040031025 is a wasteful number, since it uses less digits than its factorization.

51040031025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680533760 (or 680533755 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The spelling of 51040031025 in words is "fifty-one billion, forty million, thirty-one thousand, twenty-five".