252665712 has 120 divisors (see below), whose sum is σ = 772638048. Its totient is φ = 76608000.

The previous prime is 252665701. The next prime is 252665729. The reversal of 252665712 is 217566252.

252665712 is a `hidden beast` number, since 2 + 526 + 65 + 71 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 131962 + ... + 133862.

Almost surely, 2^252665712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252665712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386319024).

252665712 is an abundant number, since it is smaller than the sum of its proper divisors (519972336).

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

252665712 is a wasteful number, since it uses less digits than its factorization.

252665712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999 (or 1990 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 252665712 is about 15895.4619939151. The cubic root of 252665712 is about 632.1916712883.

The spelling of 252665712 in words is "two hundred fifty-two million, six hundred sixty-five thousand, seven hundred twelve".