52720832 has 28 divisors (see below), whose sum is σ = 107996736. Its totient is φ = 25509120.

The previous prime is 52720831. The next prime is 52720867. The reversal of 52720832 is 23802725.

It is a super-2 number, since 2×52720832² = 5558972253544448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 52720795 and 52720804.

It is not an unprimeable number, because it can be changed into a prime (52720831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11303 + ... + 15270.

Almost surely, 2^52720832 is an apocalyptic number.

It is an amenable number.

52720832 is an abundant number, since it is smaller than the sum of its proper divisors (55275904).

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

52720832 is a wasteful number, since it uses less digits than its factorization.

52720832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26616 (or 26606 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 52720832 is about 7260.9112375789. The cubic root of 52720832 is about 374.9678953256.

The spelling of 52720832 in words is "fifty-two million, seven hundred twenty thousand, eight hundred thirty-two".