225122525 has 6 divisors (see below), whose sum is σ = 279151962. Its totient is φ = 180098000.

The previous prime is 225122519. The next prime is 225122533. The reversal of 225122525 is 525221522.

It can be written as a sum of positive squares in 3 ways, for example, as 11874916 + 213247609 = 3446^2 + 14603^2 .

It is not a de Polignac number, because 225122525 - 2⁴ = 225122509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225122494 and 225122503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4502426 + ... + 4502475.

It is an arithmetic number, because the mean of its divisors is an integer number (46525327).

Almost surely, 2^225122525 is an apocalyptic number.

225122525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225122525 is a deficient number, since it is larger than the sum of its proper divisors (54029437).

225122525 is an equidigital number, since it uses as much as digits as its factorization.

225122525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9004911 (or 9004906 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 225122525 is about 15004.0836108041. The cubic root of 225122525 is about 608.3305827527.

The spelling of 225122525 in words is "two hundred twenty-five million, one hundred twenty-two thousand, five hundred twenty-five".