215055232 has 32 divisors (see below), whose sum is σ = 489636720. Its totient is φ = 92166144.

The previous prime is 215055223. The next prime is 215055251. The reversal of 215055232 is 232550512.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 215055197 and 215055206.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 119113 + ... + 120904.

Almost surely, 2^215055232 is an apocalyptic number.

It is an amenable number.

215055232 is an abundant number, since it is smaller than the sum of its proper divisors (274581488).

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

215055232 is an equidigital number, since it uses as much as digits as its factorization.

215055232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240038 (or 240026 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 215055232 is about 14664.7615732408. The cubic root of 215055232 is about 599.1239362913.

The spelling of 215055232 in words is "two hundred fifteen million, fifty-five thousand, two hundred thirty-two".