522090725 has 12 divisors (see below), whose sum is σ = 697192356. Its totient is φ = 385543680.

The previous prime is 522090719. The next prime is 522090727. The reversal of 522090725 is 527090225.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 42393121 + 479697604 = 6511^2 + 21902^2 .

It is not a de Polignac number, because 522090725 - 2²⁴ = 505313509 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 522090691 and 522090700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522090727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 802892 + ... + 803541.

It is an arithmetic number, because the mean of its divisors is an integer number (58099363).

Almost surely, 2^522090725 is an apocalyptic number.

It is an amenable number.

522090725 is a deficient number, since it is larger than the sum of its proper divisors (175101631).

522090725 is a wasteful number, since it uses less digits than its factorization.

522090725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606456 (or 1606451 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 522090725 is about 22849.3046940164. The cubic root of 522090725 is about 805.2214325969.

The spelling of 522090725 in words is "five hundred twenty-two million, ninety thousand, seven hundred twenty-five".