252488521 has 4 divisors (see below), whose sum is σ = 260633344. Its totient is φ = 244343700.

The previous prime is 252488519. The next prime is 252488527. The reversal of 252488521 is 125884252.

252488521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252488521 - 2¹ = 252488519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252488527) 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, 4072365 + ... + 4072426.

It is an arithmetic number, because the mean of its divisors is an integer number (65158336).

Almost surely, 2^252488521 is an apocalyptic number.

It is an amenable number.

252488521 is a deficient number, since it is larger than the sum of its proper divisors (8144823).

252488521 is an equidigital number, since it uses as much as digits as its factorization.

252488521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8144822.

The product of its digits is 51200, while the sum is 37.

The square root of 252488521 is about 15889.8873816022. The cubic root of 252488521 is about 632.0438542781.

It can be divided in two parts, 252488 and 521, that added together give a square (253009 = 503²).

The spelling of 252488521 in words is "two hundred fifty-two million, four hundred eighty-eight thousand, five hundred twenty-one".