225522525 has 12 divisors (see below), whose sum is σ = 372864032. Its totient is φ = 120278640.

The previous prime is 225522491. The next prime is 225522541. The reversal of 225522525 is 525225522.

It is not a de Polignac number, because 225522525 - 2⁶ = 225522461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225522492 and 225522501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1503409 + ... + 1503558.

Almost surely, 2^225522525 is an apocalyptic number.

225522525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225522525 is a deficient number, since it is larger than the sum of its proper divisors (147341507).

225522525 is a wasteful number, since it uses less digits than its factorization.

225522525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006980 (or 3006975 counting only the distinct ones).

The product of its digits is 20000, while the sum is 30.

The square root of 225522525 is about 15017.4073994149. The cubic root of 225522525 is about 608.6906655666.

The spelling of 225522525 in words is "two hundred twenty-five million, five hundred twenty-two thousand, five hundred twenty-five".