522989225 has 36 divisors (see below), whose sum is σ = 721755888. Its totient is φ = 375592800.

The previous prime is 522989209. The next prime is 522989239.

522989225 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 522989225 - 2⁴ = 522989209 is a prime.

It is a super-2 number, since 2×522989225² = 547035458932201250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 250034 + ... + 252116.

Almost surely, 2^522989225 is an apocalyptic number.

522989225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

522989225 is a deficient number, since it is larger than the sum of its proper divisors (198766663).

522989225 is a wasteful number, since it uses less digits than its factorization.

522989225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198 (or 2182 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 522989225 is about 22868.9576719185. The cubic root of 522989225 is about 805.6830872382.

The spelling of 522989225 in words is "five hundred twenty-two million, nine hundred eighty-nine thousand, two hundred twenty-five".