252905470 has 16 divisors (see below), whose sum is σ = 475022880. Its totient is φ = 96763744.

The previous prime is 252905459. The next prime is 252905509. The reversal of 252905470 is 74509252.

It is a super-2 number, since 2×252905470² = 127922353511841800, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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 7 ways as a sum of consecutive naturals, for example, 549565 + ... + 550024.

It is an arithmetic number, because the mean of its divisors is an integer number (29688930).

Almost surely, 2^252905470 is an apocalyptic number.

252905470 is a deficient number, since it is larger than the sum of its proper divisors (222117410).

252905470 is a wasteful number, since it uses less digits than its factorization.

252905470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099619.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 252905470 is about 15903.0019178770. The cubic root of 252905470 is about 632.3915732213.

The spelling of 252905470 in words is "two hundred fifty-two million, nine hundred five thousand, four hundred seventy".