216625600 has 42 divisors (see below), whose sum is σ = 533038304. Its totient is φ = 86649600.

The previous prime is 216625589. The next prime is 216625603. The reversal of 216625600 is 6526612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216625603) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 66096 + ... + 69295.

Almost surely, 2^216625600 is an apocalyptic number.

216625600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216625600 is an abundant number, since it is smaller than the sum of its proper divisors (316412704).

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

216625600 is a wasteful number, since it uses less digits than its factorization.

216625600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135413 (or 135398 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 216625600 is about 14718.2064124675. The cubic root of 216625600 is about 600.5787009219.

The spelling of 216625600 in words is "two hundred sixteen million, six hundred twenty-five thousand, six hundred".