252045688 has 16 divisors (see below), whose sum is σ = 472913280. Its totient is φ = 125935488.

The previous prime is 252045683. The next prime is 252045763. The reversal of 252045688 is 886540252.

252045688 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 252045688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252045683) 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, 2281 + ... + 22567.

It is an arithmetic number, because the mean of its divisors is an integer number (29557080).

Almost surely, 2^252045688 is an apocalyptic number.

It is an amenable number.

252045688 is a deficient number, since it is larger than the sum of its proper divisors (220867592).

252045688 is a wasteful number, since it uses less digits than its factorization.

252045688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21846 (or 21842 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 252045688 is about 15875.9468379054. The cubic root of 252045688 is about 631.6741296597.

The spelling of 252045688 in words is "two hundred fifty-two million, forty-five thousand, six hundred eighty-eight".