252420663 has 16 divisors (see below), whose sum is σ = 368159616. Its totient is φ = 152564640.

The previous prime is 252420629. The next prime is 252420671. The reversal of 252420663 is 366024252.

It is not a de Polignac number, because 252420663 - 2⁹ = 252420151 is a prime.

It is a super-2 number, since 2×252420663² = 127432382218719138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252420663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252420683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2056 + ... + 22562.

It is an arithmetic number, because the mean of its divisors is an integer number (23009976).

Almost surely, 2^252420663 is an apocalyptic number.

252420663 is a deficient number, since it is larger than the sum of its proper divisors (115738953).

252420663 is a wasteful number, since it uses less digits than its factorization.

252420663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20894.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 252420663 is about 15887.7519806925. The cubic root of 252420663 is about 631.9872271827.

The spelling of 252420663 in words is "two hundred fifty-two million, four hundred twenty thousand, six hundred sixty-three".