215052216 has 32 divisors (see below), whose sum is σ = 550746000. Its totient is φ = 69935360.

The previous prime is 215052199. The next prime is 215052259. The reversal of 215052216 is 612250512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108291 + ... + 110258.

Almost surely, 2^215052216 is an apocalyptic number.

It is an amenable number.

215052216 is an abundant number, since it is smaller than the sum of its proper divisors (335693784).

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

215052216 is a wasteful number, since it uses less digits than its factorization.

215052216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218599 (or 218595 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 215052216 is about 14664.6587413414. The cubic root of 215052216 is about 599.1211355128.

The spelling of 215052216 in words is "two hundred fifteen million, fifty-two thousand, two hundred sixteen".