252911806 has 16 divisors (see below), whose sum is σ = 433974240. Its totient is φ = 108288000.

The previous prime is 252911797. The next prime is 252911807. The reversal of 252911806 is 608119252.

252911806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×252911806² = 127928763228363272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252911807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7806 + ... + 23806.

It is an arithmetic number, because the mean of its divisors is an integer number (27123390).

Almost surely, 2^252911806 is an apocalyptic number.

252911806 is a deficient number, since it is larger than the sum of its proper divisors (181062434).

252911806 is a wasteful number, since it uses less digits than its factorization.

252911806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17139.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 252911806 is about 15903.2011243020. The cubic root of 252911806 is about 632.3968542453.

The spelling of 252911806 in words is "two hundred fifty-two million, nine hundred eleven thousand, eight hundred six".