252185688 has 48 divisors (see below), whose sum is σ = 689785200. Its totient is φ = 83227200.

The previous prime is 252185677. The next prime is 252185699. The reversal of 252185688 is 886581252.

252185688 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (252185677) and next prime (252185699).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10068 + ... + 24611.

It is an arithmetic number, because the mean of its divisors is an integer number (14370525).

Almost surely, 2^252185688 is an apocalyptic number.

It is an amenable number.

252185688 is an abundant number, since it is smaller than the sum of its proper divisors (437599512).

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

252185688 is a wasteful number, since it uses less digits than its factorization.

252185688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34792 (or 34785 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 252185688 is about 15880.3554116399. The cubic root of 252185688 is about 631.7910634983.

It can be divided in two parts, 2521 and 85688, that added together give a square (88209 = 297²).

The spelling of 252185688 in words is "two hundred fifty-two million, one hundred eighty-five thousand, six hundred eighty-eight".