215532332 has 6 divisors (see below), whose sum is σ = 377181588. Its totient is φ = 107766164.

The previous prime is 215532313. The next prime is 215532377. The reversal of 215532332 is 233235512.

It is a super-2 number, since 2×215532332² = 92908372274716448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26941538 + ... + 26941545.

It is an arithmetic number, because the mean of its divisors is an integer number (62863598).

Almost surely, 2^215532332 is an apocalyptic number.

It is an amenable number.

215532332 is a deficient number, since it is larger than the sum of its proper divisors (161649256).

215532332 is a wasteful number, since it uses less digits than its factorization.

215532332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53883087 (or 53883085 counting only the distinct ones).

The product of its digits is 5400, while the sum is 26.

The square root of 215532332 is about 14681.0194468913. The cubic root of 215532332 is about 599.5666611785.

Adding to 215532332 its reverse (233235512), we get a palindrome (448767844).

The spelling of 215532332 in words is "two hundred fifteen million, five hundred thirty-two thousand, three hundred thirty-two".