522422216 has 8 divisors (see below), whose sum is σ = 979541670. Its totient is φ = 261211104.

The previous prime is 522422191. The next prime is 522422273. The reversal of 522422216 is 612224225.

It can be written as a sum of positive squares in only one way, i.e., 338928100 + 183494116 = 18410^2 + 13546^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32651381 + ... + 32651396.

Almost surely, 2^522422216 is an apocalyptic number.

It is an amenable number.

522422216 is a deficient number, since it is larger than the sum of its proper divisors (457119454).

522422216 is a wasteful number, since it uses less digits than its factorization.

522422216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65302783 (or 65302779 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 522422216 is about 22856.5573960735. The cubic root of 522422216 is about 805.3918162566.

The spelling of 522422216 in words is "five hundred twenty-two million, four hundred twenty-two thousand, two hundred sixteen".