522252228 has 24 divisors (see below), whose sum is σ = 1220456160. Its totient is φ = 173817280.

The previous prime is 522252197. The next prime is 522252229. The reversal of 522252228 is 822252225.

It is a junction number, because it is equal to n+sod(n) for n = 522252195 and 522252204.

It is not an unprimeable number, because it can be changed into a prime (522252229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25113 + ... + 40928.

It is an arithmetic number, because the mean of its divisors is an integer number (50852340).

Almost surely, 2^522252228 is an apocalyptic number.

It is an amenable number.

522252228 is an abundant number, since it is smaller than the sum of its proper divisors (698203932).

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

522252228 is a wasteful number, since it uses less digits than its factorization.

522252228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66707 (or 66705 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 522252228 is about 22852.8385107846. The cubic root of 522252228 is about 805.3044528229.

The spelling of 522252228 in words is "five hundred twenty-two million, two hundred fifty-two thousand, two hundred twenty-eight".