522055521 has 12 divisors (see below), whose sum is σ = 812086548. Its totient is φ = 321264864.

The previous prime is 522055519. The next prime is 522055549. The reversal of 522055521 is 125550225.

It can be written as a sum of positive squares in 2 ways, for example, as 66830625 + 455224896 = 8175^2 + 21336^2 .

It is not a de Polignac number, because 522055521 - 2¹ = 522055519 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (522055511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2230890 + ... + 2231123.

It is an arithmetic number, because the mean of its divisors is an integer number (67673879).

Almost surely, 2^522055521 is an apocalyptic number.

It is an amenable number.

522055521 is a deficient number, since it is larger than the sum of its proper divisors (290031027).

522055521 is a wasteful number, since it uses less digits than its factorization.

522055521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462032 (or 4462029 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 522055521 is about 22848.5343293613. The cubic root of 522055521 is about 805.2033337934.

The spelling of 522055521 in words is "five hundred twenty-two million, fifty-five thousand, five hundred twenty-one".