252685556 has 24 divisors (see below), whose sum is σ = 451573920. Its totient is φ = 123675552.

The previous prime is 252685553. The next prime is 252685561. The reversal of 252685556 is 655586252.

It is a super-2 number, since 2×252685556² = 127699980422058272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252685553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114875 + ... + 117053.

It is an arithmetic number, because the mean of its divisors is an integer number (18815580).

Almost surely, 2^252685556 is an apocalyptic number.

It is an amenable number.

252685556 is a deficient number, since it is larger than the sum of its proper divisors (198888364).

252685556 is a wasteful number, since it uses less digits than its factorization.

252685556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783 (or 2781 counting only the distinct ones).

The product of its digits is 720000, while the sum is 44.

The square root of 252685556 is about 15896.0861849702. The cubic root of 252685556 is about 632.2082213285.

The spelling of 252685556 in words is "two hundred fifty-two million, six hundred eighty-five thousand, five hundred fifty-six".