215276252 has 12 divisors (see below), whose sum is σ = 376881120. Its totient is φ = 107595936.

The previous prime is 215276239. The next prime is 215276261. The reversal of 215276252 is 252672512.

It is a congruent number.

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, 2813 + ... + 20939.

It is an arithmetic number, because the mean of its divisors is an integer number (31406760).

Almost surely, 2^215276252 is an apocalyptic number.

It is an amenable number.

215276252 is a deficient number, since it is larger than the sum of its proper divisors (161604868).

215276252 is a wasteful number, since it uses less digits than its factorization.

215276252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21100 (or 21098 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 215276252 is about 14672.2953896110. The cubic root of 215276252 is about 599.3291130938.

The spelling of 215276252 in words is "two hundred fifteen million, two hundred seventy-six thousand, two hundred fifty-two".