252666156 has 12 divisors (see below), whose sum is σ = 589554392. Its totient is φ = 84222048.

The previous prime is 252666133. The next prime is 252666181. The reversal of 252666156 is 651666252.

It is a happy number.

252666156 is digitally balanced in base 2, 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10527745 + ... + 10527768.

Almost surely, 2^252666156 is an apocalyptic number.

It is an amenable number.

252666156 is an abundant number, since it is smaller than the sum of its proper divisors (336888236).

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

252666156 is a wasteful number, since it uses less digits than its factorization.

252666156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21055520 (or 21055518 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 252666156 is about 15895.4759601592. The cubic root of 252666156 is about 632.1920415970.

The spelling of 252666156 in words is "two hundred fifty-two million, six hundred sixty-six thousand, one hundred fifty-six".