51450256320 has 56 divisors (see below), whose sum is σ = 163354566864. Its totient is φ = 13720068096.

The previous prime is 51450256303. The next prime is 51450256357. The reversal of 51450256320 is 2365205415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26796049 + ... + 26797968.

Almost surely, 2^51450256320 is an apocalyptic number.

It is an amenable number.

51450256320 is an abundant number, since it is smaller than the sum of its proper divisors (111904310544).

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

51450256320 is a wasteful number, since it uses less digits than its factorization.

51450256320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53594037 (or 53594027 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 51450256320 in words is "fifty-one billion, four hundred fifty million, two hundred fifty-six thousand, three hundred twenty".