625816222 has 4 divisors (see below), whose sum is σ = 938724336. Its totient is φ = 312908110.

The previous prime is 625816207. The next prime is 625816231. The reversal of 625816222 is 222618526.

625816222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×625816222³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156454054 + ... + 156454057.

It is an arithmetic number, because the mean of its divisors is an integer number (234681084).

Almost surely, 2^625816222 is an apocalyptic number.

625816222 is a deficient number, since it is larger than the sum of its proper divisors (312908114).

625816222 is a wasteful number, since it uses less digits than its factorization.

625816222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312908113.

The product of its digits is 23040, while the sum is 34.

The square root of 625816222 is about 25016.3191137305. The cubic root of 625816222 is about 855.3600034303.

The spelling of 625816222 in words is "six hundred twenty-five million, eight hundred sixteen thousand, two hundred twenty-two".