51552991074 has 16 divisors (see below), whose sum is σ = 111037211712. Its totient is φ = 15862458768.

The previous prime is 51552991033. The next prime is 51552991093. The reversal of 51552991074 is 47019925515.

It is a Curzon 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, 330467814 + ... + 330467969.

It is an arithmetic number, because the mean of its divisors is an integer number (6939825732).

Almost surely, 2^51552991074 is an apocalyptic number.

51552991074 is an abundant number, since it is smaller than the sum of its proper divisors (59484220638).

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

51552991074 is a wasteful number, since it uses less digits than its factorization.

51552991074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660935801.

The product of its (nonzero) digits is 567000, while the sum is 48.

The spelling of 51552991074 in words is "fifty-one billion, five hundred fifty-two million, nine hundred ninety-one thousand, seventy-four".