522479725 has 6 divisors (see below), whose sum is σ = 647874890. Its totient is φ = 417983760.

The previous prime is 522479723. The next prime is 522479729. The reversal of 522479725 is 527974225.

It can be written as a sum of positive squares in 3 ways, for example, as 8369449 + 514110276 = 2893^2 + 22674^2 .

It is not a de Polignac number, because 522479725 - 2¹ = 522479723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522479723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10449570 + ... + 10449619.

Almost surely, 2^522479725 is an apocalyptic number.

It is an amenable number.

522479725 is a deficient number, since it is larger than the sum of its proper divisors (125395165).

522479725 is a wasteful number, since it uses less digits than its factorization.

522479725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20899199 (or 20899194 counting only the distinct ones).

The product of its digits is 352800, while the sum is 43.

The square root of 522479725 is about 22857.8154030520. The cubic root of 522479725 is about 805.4213680745.

The spelling of 522479725 in words is "five hundred twenty-two million, four hundred seventy-nine thousand, seven hundred twenty-five".