252666656 has 24 divisors (see below), whose sum is σ = 542659824. Its totient is φ = 114848320.

The previous prime is 252666653. The next prime is 252666677. The reversal of 252666656 is 656666252.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (252666653) 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, 358550 + ... + 359253.

It is an arithmetic number, because the mean of its divisors is an integer number (22610826).

Almost surely, 2^252666656 is an apocalyptic number.

It is an amenable number.

252666656 is an abundant number, since it is smaller than the sum of its proper divisors (289993168).

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

252666656 is a wasteful number, since it uses less digits than its factorization.

252666656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717824 (or 717816 counting only the distinct ones).

The product of its digits is 777600, while the sum is 44.

The square root of 252666656 is about 15895.4916878969. The cubic root of 252666656 is about 632.1924586108.

The spelling of 252666656 in words is "two hundred fifty-two million, six hundred sixty-six thousand, six hundred fifty-six".