625662216 has 24 divisors (see below), whose sum is σ = 1694502030. Its totient is φ = 208554048.

The previous prime is 625662187. The next prime is 625662221. The reversal of 625662216 is 612266526.

625662216 is a `hidden beast` number, since 6 + 25 + 6 + 622 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 413959716 + 211702500 = 20346^2 + 14550^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4344805 + ... + 4344948.

Almost surely, 2^625662216 is an apocalyptic number.

It is an amenable number.

625662216 is an abundant number, since it is smaller than the sum of its proper divisors (1068839814).

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

625662216 is a wasteful number, since it uses less digits than its factorization.

625662216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8689765 (or 8689758 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 625662216 is about 25013.2408136171. The cubic root of 625662216 is about 855.2898330005.

The spelling of 625662216 in words is "six hundred twenty-five million, six hundred sixty-two thousand, two hundred sixteen".