252805724 has 12 divisors (see below), whose sum is σ = 448641648. Its totient is φ = 124622400.

The previous prime is 252805723. The next prime is 252805739. The reversal of 252805724 is 427508252.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252805723) 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, 444797 + ... + 445364.

It is an arithmetic number, because the mean of its divisors is an integer number (37386804).

Almost surely, 2^252805724 is an apocalyptic number.

It is an amenable number.

252805724 is a deficient number, since it is larger than the sum of its proper divisors (195835924).

252805724 is a wasteful number, since it uses less digits than its factorization.

252805724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890236 (or 890234 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 252805724 is about 15899.8655340226. The cubic root of 252805724 is about 632.3084238079.

The spelling of 252805724 in words is "two hundred fifty-two million, eight hundred five thousand, seven hundred twenty-four".