252605404 has 12 divisors (see below), whose sum is σ = 448115584. Its totient is φ = 124572384.

The previous prime is 252605393. The next prime is 252605443. The reversal of 252605404 is 404506252.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 432252 + ... + 432835.

Almost surely, 2^252605404 is an apocalyptic number.

It is an amenable number.

252605404 is a deficient number, since it is larger than the sum of its proper divisors (195510180).

252605404 is a wasteful number, since it uses less digits than its factorization.

252605404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865164 (or 865162 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 252605404 is about 15893.5648612890. The cubic root of 252605404 is about 632.1413686587.

It can be divided in two parts, 252605 and 404, that added together give a square (253009 = 503²).

The spelling of 252605404 in words is "two hundred fifty-two million, six hundred five thousand, four hundred four".