51111010040025 has 24 divisors (see below), whose sum is σ = 91003808647360. Its totient is φ = 25162343403840.

The previous prime is 51111010040009. The next prime is 51111010040033. The reversal of 51111010040025 is 52004001011115.

It is not a de Polignac number, because 51111010040025 - 2⁴ = 51111010040009 is a prime.

It is a super-2 number, since 2×51111010040025² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51111010039983 and 51111010040010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26210773405 + ... + 26210775354.

Almost surely, 2^{51111010040025} is an apocalyptic number.

It is an amenable number.

51111010040025 is a deficient number, since it is larger than the sum of its proper divisors (39892798607335).

51111010040025 is a wasteful number, since it uses less digits than its factorization.

51111010040025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52421548785 (or 52421548780 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 21.

The spelling of 51111010040025 in words is "fifty-one trillion, one hundred eleven billion, ten million, forty thousand, twenty-five".