216324575 has 48 divisors (see below), whose sum is σ = 295052544. Its totient is φ = 156710400.

The previous prime is 216324553. The next prime is 216324631. The reversal of 216324575 is 575423612.

It is not a de Polignac number, because 216324575 - 2¹⁰ = 216323551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2021672 + ... + 2021778.

It is an arithmetic number, because the mean of its divisors is an integer number (6146928).

Almost surely, 2^216324575 is an apocalyptic number.

216324575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

216324575 is a deficient number, since it is larger than the sum of its proper divisors (78727969).

216324575 is a wasteful number, since it uses less digits than its factorization.

216324575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 267 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 216324575 is about 14707.9765773542. The cubic root of 216324575 is about 600.3003820001.

The spelling of 216324575 in words is "two hundred sixteen million, three hundred twenty-four thousand, five hundred seventy-five".