52720688 has 20 divisors (see below), whose sum is σ = 102930168. Its totient is φ = 26158080.

The previous prime is 52720667. The next prime is 52720697. The reversal of 52720688 is 88602725.

It is a congruent number.

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, 10481 + ... + 14672.

Almost surely, 2^52720688 is an apocalyptic number.

It is an amenable number.

52720688 is a deficient number, since it is larger than the sum of its proper divisors (50209480).

52720688 is a wasteful number, since it uses less digits than its factorization.

52720688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25292 (or 25286 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 52720688 is about 7260.9013214614. The cubic root of 52720688 is about 374.9675539335.

The spelling of 52720688 in words is "fifty-two million, seven hundred twenty thousand, six hundred eighty-eight".