51110100625 has 10 divisors (see below), whose sum is σ = 63867182522. Its totient is φ = 40888080000.

The previous prime is 51110100583. The next prime is 51110100667. The reversal of 51110100625 is 52600101115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51110100583) and next prime (51110100667).

It can be written as a sum of positive squares in 5 ways, for example, as 7080212736 + 44029887889 = 84144^2 + 209833^2 .

It is not a de Polignac number, because 51110100625 - 2⁹ = 51110100113 is a prime.

It is a super-2 number, since 2×51110100625² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51110100596 and 51110100605.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40887456 + ... + 40888705.

Almost surely, 2^51110100625 is an apocalyptic number.

It is an amenable number.

51110100625 is a deficient number, since it is larger than the sum of its proper divisors (12757081897).

51110100625 is an frugal number, since it uses more digits than its factorization.

51110100625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81776181 (or 81776166 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

The spelling of 51110100625 in words is "fifty-one billion, one hundred ten million, one hundred thousand, six hundred twenty-five".