216525264 has 40 divisors (see below), whose sum is σ = 573004992. Its totient is φ = 70414080.

The previous prime is 216525259. The next prime is 216525293. The reversal of 216525264 is 462525612.

216525264 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53044 + ... + 56979.

Almost surely, 2^216525264 is an apocalyptic number.

216525264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216525264 is an abundant number, since it is smaller than the sum of its proper divisors (356479728).

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

216525264 is a wasteful number, since it uses less digits than its factorization.

216525264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110075 (or 110069 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 216525264 is about 14714.7974501860. The cubic root of 216525264 is about 600.4859618511.

The spelling of 216525264 in words is "two hundred sixteen million, five hundred twenty-five thousand, two hundred sixty-four".