252593664 has 40 divisors (see below), whose sum is σ = 672929400. Its totient is φ = 84197376.

The previous prime is 252593639. The next prime is 252593699. The reversal of 252593664 is 466395252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80689 + ... + 83760.

It is an arithmetic number, because the mean of its divisors is an integer number (16823235).

Almost surely, 2^252593664 is an apocalyptic number.

252593664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

252593664 is an abundant number, since it is smaller than the sum of its proper divisors (420335736).

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

252593664 is an equidigital number, since it uses as much as digits as its factorization.

252593664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164470 (or 164454 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 252593664 is about 15893.1955251296. The cubic root of 252593664 is about 632.1315754470.

The spelling of 252593664 in words is "two hundred fifty-two million, five hundred ninety-three thousand, six hundred sixty-four".