52688530 has 32 divisors (see below), whose sum is σ = 98380800. Its totient is φ = 20295360.

The previous prime is 52688527. The next prime is 52688543. The reversal of 52688530 is 3588625.

It is a self number, because there is not a number n which added to its sum of digits gives 52688530.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107947 + ... + 108433.

It is an arithmetic number, because the mean of its divisors is an integer number (3074400).

Almost surely, 2^52688530 is an apocalyptic number.

52688530 is a deficient number, since it is larger than the sum of its proper divisors (45692270).

52688530 is a wasteful number, since it uses less digits than its factorization.

52688530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 52688530 is about 7258.6865203010. The cubic root of 52688530 is about 374.8912988642.

The spelling of 52688530 in words is "fifty-two million, six hundred eighty-eight thousand, five hundred thirty".