252856692 has 36 divisors (see below), whose sum is σ = 697272576. Its totient is φ = 76623120.

The previous prime is 252856673. The next prime is 252856699. The reversal of 252856692 is 296658252.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252856699) 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, 318868 + ... + 319659.

Almost surely, 2^252856692 is an apocalyptic number.

252856692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

252856692 is an abundant number, since it is smaller than the sum of its proper divisors (444415884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252856692 is a wasteful number, since it uses less digits than its factorization.

252856692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638548 (or 638543 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 252856692 is about 15901.4682340971. The cubic root of 252856692 is about 632.3509140513.

The spelling of 252856692 in words is "two hundred fifty-two million, eight hundred fifty-six thousand, six hundred ninety-two".