252666904 has 16 divisors (see below), whose sum is σ = 541429200. Its totient is φ = 108285792.

The previous prime is 252666901. The next prime is 252666923. The reversal of 252666904 is 409666252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252666901) 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 3 ways as a sum of consecutive naturals, for example, 2255899 + ... + 2256010.

It is an arithmetic number, because the mean of its divisors is an integer number (33839325).

Almost surely, 2^252666904 is an apocalyptic number.

It is an amenable number.

252666904 is an abundant number, since it is smaller than the sum of its proper divisors (288762296).

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

252666904 is a wasteful number, since it uses less digits than its factorization.

252666904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511922 (or 4511918 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 252666904 is about 15895.4994888490. The cubic root of 252666904 is about 632.1926654494.

The spelling of 252666904 in words is "two hundred fifty-two million, six hundred sixty-six thousand, nine hundred four".