252725820 has 24 divisors (see below), whose sum is σ = 707632464. Its totient is φ = 67393536.

The previous prime is 252725813. The next prime is 252725861. The reversal of 252725820 is 28527252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2105989 + ... + 2106108.

It is an arithmetic number, because the mean of its divisors is an integer number (29484686).

Almost surely, 2^252725820 is an apocalyptic number.

252725820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252725820 is an abundant number, since it is smaller than the sum of its proper divisors (454906644).

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

252725820 is a wasteful number, since it uses less digits than its factorization.

252725820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212109 (or 4212107 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 252725820 is about 15897.3526097901. The cubic root of 252725820 is about 632.2417991347.

The spelling of 252725820 in words is "two hundred fifty-two million, seven hundred twenty-five thousand, eight hundred twenty".