51232520472 has 32 divisors (see below), whose sum is σ = 146378630400. Its totient is φ = 14637862944.

The previous prime is 51232520453. The next prime is 51232520483. The reversal of 51232520472 is 27402523215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152477572 + ... + 152477907.

It is an arithmetic number, because the mean of its divisors is an integer number (4574332200).

Almost surely, 2^51232520472 is an apocalyptic number.

It is an amenable number.

51232520472 is an abundant number, since it is smaller than the sum of its proper divisors (95146109928).

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

51232520472 is a wasteful number, since it uses less digits than its factorization.

51232520472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304955495 (or 304955491 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 51232520472 in words is "fifty-one billion, two hundred thirty-two million, five hundred twenty thousand, four hundred seventy-two".