252626871 has 32 divisors (see below), whose sum is σ = 411522048. Its totient is φ = 134703360.

The previous prime is 252626863. The next prime is 252626903. The reversal of 252626871 is 178626252.

It is not a de Polignac number, because 252626871 - 2³ = 252626863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252626821) 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, 13425 + ... + 26181.

It is an arithmetic number, because the mean of its divisors is an integer number (12860064).

Almost surely, 2^252626871 is an apocalyptic number.

252626871 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252626871 is a deficient number, since it is larger than the sum of its proper divisors (158895177).

252626871 is a wasteful number, since it uses less digits than its factorization.

252626871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12831.

The product of its digits is 80640, while the sum is 39.

The square root of 252626871 is about 15894.2401831607. The cubic root of 252626871 is about 632.1592751038.

The spelling of 252626871 in words is "two hundred fifty-two million, six hundred twenty-six thousand, eight hundred seventy-one".