252289164 has 12 divisors (see below), whose sum is σ = 588674744. Its totient is φ = 84096384.

The previous prime is 252289153. The next prime is 252289171. The reversal of 252289164 is 461982252.

252289164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10512037 + ... + 10512060.

Almost surely, 2^252289164 is an apocalyptic number.

It is an amenable number.

252289164 is an abundant number, since it is smaller than the sum of its proper divisors (336385580).

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

252289164 is a wasteful number, since it uses less digits than its factorization.

252289164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21024104 (or 21024102 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 252289164 is about 15883.6130650429. The cubic root of 252289164 is about 631.8774631577.

The spelling of 252289164 in words is "two hundred fifty-two million, two hundred eighty-nine thousand, one hundred sixty-four".