51912832 has 32 divisors (see below), whose sum is σ = 109508220. Its totient is φ = 24428544.

The previous prime is 51912829. The next prime is 51912841. The reversal of 51912832 is 23821915.

It can be written as a sum of positive squares in 2 ways, for example, as 51036736 + 876096 = 7144^2 + 936^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 51912794 and 51912803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9753 + ... + 14104.

Almost surely, 2^51912832 is an apocalyptic number.

It is an amenable number.

51912832 is an abundant number, since it is smaller than the sum of its proper divisors (57595388).

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

51912832 is a wasteful number, since it uses less digits than its factorization.

51912832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23888 (or 23876 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 51912832 is about 7205.0560025582. The cubic root of 51912832 is about 373.0424377967.

The spelling of 51912832 in words is "fifty-one million, nine hundred twelve thousand, eight hundred thirty-two".