225004525 has 12 divisors (see below), whose sum is σ = 280043584. Its totient is φ = 179334000.

The previous prime is 225004523. The next prime is 225004529. The reversal of 225004525 is 525400522.

It is a happy number.

It is not a de Polignac number, because 225004525 - 2¹ = 225004523 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225004525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225004523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9831 + ... + 23380.

Almost surely, 2^225004525 is an apocalyptic number.

225004525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225004525 is a deficient number, since it is larger than the sum of its proper divisors (55039059).

225004525 is a wasteful number, since it uses less digits than its factorization.

225004525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33492 (or 33487 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 225004525 is about 15000.1508325750. The cubic root of 225004525 is about 608.2242768580.

The spelling of 225004525 in words is "two hundred twenty-five million, four thousand, five hundred twenty-five".