522351025 has 27 divisors (see below), whose sum is σ = 754620321. Its totient is φ = 357635040.

The previous prime is 522351017. The next prime is 522351031. The reversal of 522351025 is 520153225.

It is a happy number.

The square root of 522351025 is 22855.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 88378801 + 433972224 = 9401^2 + 20832^2 .

It is not a de Polignac number, because 522351025 - 2³ = 522351017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 799599 + ... + 800251.

Almost surely, 2^522351025 is an apocalyptic number.

522351025 is the 22855-th square number.

522351025 is the 11428-th centered octagonal number.

It is an amenable number.

522351025 is a deficient number, since it is larger than the sum of its proper divisors (232269296).

522351025 is an frugal number, since it uses more digits than its factorization.

522351025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The cubic root of 522351025 is about 805.3552307442.

Multiplying 522351025 by its sum of digits (25), we get a square (13058775625 = 114275²).

522351025 divided by its sum of digits (25) gives a square (20894041 = 4571²).

The spelling of 522351025 in words is "five hundred twenty-two million, three hundred fifty-one thousand, twenty-five".