51624832 has 48 divisors (see below), whose sum is σ = 119652120. Its totient is φ = 22122240.

The previous prime is 51624829. The next prime is 51624883. The reversal of 51624832 is 23842615.

It is a junction number, because it is equal to n+sod(n) for n = 51624794 and 51624803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2157 + ... + 10387.

Almost surely, 2^51624832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51624832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59826060).

51624832 is an abundant number, since it is smaller than the sum of its proper divisors (68027288).

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

51624832 is an equidigital number, since it uses as much as digits as its factorization.

51624832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8259 (or 8240 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 51624832 is about 7185.0422406552. The cubic root of 51624832 is about 372.3513080099.

The spelling of 51624832 in words is "fifty-one million, six hundred twenty-four thousand, eight hundred thirty-two".