215132552 has 16 divisors (see below), whose sum is σ = 427101660. Its totient is φ = 101238784.

The previous prime is 215132549. The next prime is 215132557. The reversal of 215132552 is 255231512.

It can be written as a sum of positive squares in 2 ways, for example, as 209496676 + 5635876 = 14474^2 + 2374^2 .

It is not an unprimeable number, because it can be changed into a prime (215132557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790793 + ... + 791064.

Almost surely, 2^215132552 is an apocalyptic number.

It is an amenable number.

215132552 is a deficient number, since it is larger than the sum of its proper divisors (211969108).

215132552 is a wasteful number, since it uses less digits than its factorization.

215132552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581880 (or 1581876 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 215132552 is about 14667.3975878477. The cubic root of 215132552 is about 599.1957298049.

The spelling of 215132552 in words is "two hundred fifteen million, one hundred thirty-two thousand, five hundred fifty-two".