51031530054 has 24 divisors (see below), whose sum is σ = 113556649440. Its totient is φ = 16550766288.

The previous prime is 51031530049. The next prime is 51031530061. The reversal of 51031530054 is 45003513015.

51031530054 is a `hidden beast` number, since 51 + 0 + 31 + 530 + 0 + 54 = 666.

It is a congruent number.

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, 38311294 + ... + 38312625.

It is an arithmetic number, because the mean of its divisors is an integer number (4731527060).

Almost surely, 2^51031530054 is an apocalyptic number.

51031530054 is an abundant number, since it is smaller than the sum of its proper divisors (62525119386).

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

51031530054 is a wasteful number, since it uses less digits than its factorization.

51031530054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76623964 (or 76623961 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 51031530054 in words is "fifty-one billion, thirty-one million, five hundred thirty thousand, fifty-four".