522145216 has 28 divisors (see below), whose sum is σ = 1060233592. Its totient is φ = 254999808.

The previous prime is 522145201. The next prime is 522145219. The reversal of 522145216 is 612541225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522145219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92115 + ... + 97618.

Almost surely, 2^522145216 is an apocalyptic number.

It is an amenable number.

522145216 is an abundant number, since it is smaller than the sum of its proper divisors (538088376).

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

522145216 is a wasteful number, since it uses less digits than its factorization.

522145216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189788 (or 189778 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 522145216 is about 22850.4970624273. The cubic root of 522145216 is about 805.2494454771.

The spelling of 522145216 in words is "five hundred twenty-two million, one hundred forty-five thousand, two hundred sixteen".