252536157 has 32 divisors (see below), whose sum is σ = 384082560. Its totient is φ = 163935360.

The previous prime is 252536143. The next prime is 252536161. The reversal of 252536157 is 751635252.

It is not a de Polignac number, because 252536157 - 2⁶ = 252536093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252536177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175513 + ... + 176945.

It is an arithmetic number, because the mean of its divisors is an integer number (12002580).

Almost surely, 2^252536157 is an apocalyptic number.

252536157 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

252536157 is a deficient number, since it is larger than the sum of its proper divisors (131546403).

252536157 is a wasteful number, since it uses less digits than its factorization.

252536157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610 (or 1604 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 252536157 is about 15891.3862516774. The cubic root of 252536157 is about 632.0836001745.

The spelling of 252536157 in words is "two hundred fifty-two million, five hundred thirty-six thousand, one hundred fifty-seven".