225009525 has 24 divisors (see below), whose sum is σ = 400634080. Its totient is φ = 110773440.

The previous prime is 225009503. The next prime is 225009527. The reversal of 225009525 is 525900522.

It is not a de Polignac number, because 225009525 - 2⁵ = 225009493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225009492 and 225009501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225009527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114415 + ... + 116364.

Almost surely, 2^225009525 is an apocalyptic number.

225009525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225009525 is a deficient number, since it is larger than the sum of its proper divisors (175624555).

225009525 is a wasteful number, since it uses less digits than its factorization.

225009525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230805 (or 230800 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 225009525 is about 15000.3174966399. The cubic root of 225009525 is about 608.2287820990.

The spelling of 225009525 in words is "two hundred twenty-five million, nine thousand, five hundred twenty-five".