215625116 has 24 divisors (see below), whose sum is σ = 435286656. Its totient is φ = 91545840.

The previous prime is 215625089. The next prime is 215625133. The reversal of 215625116 is 611526512.

It is a happy number.

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, 32990 + ... + 38981.

It is an arithmetic number, because the mean of its divisors is an integer number (18136944).

Almost surely, 2^215625116 is an apocalyptic number.

It is an amenable number.

215625116 is an abundant number, since it is smaller than the sum of its proper divisors (219661540).

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

215625116 is a wasteful number, since it uses less digits than its factorization.

215625116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72089 (or 72087 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 215625116 is about 14684.1791054182. The cubic root of 215625116 is about 599.6526841768.

It can be divided in two parts, 2156 and 25116, that added together give a palindrome (27272).

The spelling of 215625116 in words is "two hundred fifteen million, six hundred twenty-five thousand, one hundred sixteen".