216232550 has 24 divisors (see below), whose sum is σ = 402585096. Its totient is φ = 86408640.

The previous prime is 216232547. The next prime is 216232567. The reversal of 216232550 is 55232612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86417 + ... + 88883.

It is an arithmetic number, because the mean of its divisors is an integer number (16774379).

Almost surely, 2^216232550 is an apocalyptic number.

216232550 is a deficient number, since it is larger than the sum of its proper divisors (186352546).

216232550 is a wasteful number, since it uses less digits than its factorization.

216232550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4232 (or 4227 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 216232550 is about 14704.8478400832. The cubic root of 216232550 is about 600.2152468462.

The spelling of 216232550 in words is "two hundred sixteen million, two hundred thirty-two thousand, five hundred fifty".