252938521 has 12 divisors (see below), whose sum is σ = 290114496. Its totient is φ = 219944120.

The previous prime is 252938519. The next prime is 252938527. The reversal of 252938521 is 125839252.

It is not a de Polignac number, because 252938521 - 2¹ = 252938519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252938527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42661 + ... + 48226.

It is an arithmetic number, because the mean of its divisors is an integer number (24176208).

Almost surely, 2^252938521 is an apocalyptic number.

It is an amenable number.

252938521 is a deficient number, since it is larger than the sum of its proper divisors (37175975).

252938521 is a wasteful number, since it uses less digits than its factorization.

252938521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90932 (or 90921 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 252938521 is about 15904.0410273616. The cubic root of 252938521 is about 632.4191200928.

The spelling of 252938521 in words is "two hundred fifty-two million, nine hundred thirty-eight thousand, five hundred twenty-one".