252523420 has 12 divisors (see below), whose sum is σ = 530299224. Its totient is φ = 101009360.

The previous prime is 252523399. The next prime is 252523501. The reversal of 252523420 is 24325252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6313066 + ... + 6313105.

It is an arithmetic number, because the mean of its divisors is an integer number (44191602).

Almost surely, 2^252523420 is an apocalyptic number.

252523420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252523420 is an abundant number, since it is smaller than the sum of its proper divisors (277775804).

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

252523420 is a wasteful number, since it uses less digits than its factorization.

252523420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12626180 (or 12626178 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 252523420 is about 15890.9854949276. The cubic root of 252523420 is about 632.0729733343.

Adding to 252523420 its reverse (24325252), we get a palindrome (276848672).

The spelling of 252523420 in words is "two hundred fifty-two million, five hundred twenty-three thousand, four hundred twenty".