225104900 has 18 divisors (see below), whose sum is σ = 488477850. Its totient is φ = 90041920.

The previous prime is 225104899. The next prime is 225104903. The reversal of 225104900 is 9401522.

It can be written as a sum of positive squares in 3 ways, for example, as 9132484 + 215972416 = 3022^2 + 14696^2 .

It is not an unprimeable number, because it can be changed into a prime (225104903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1125425 + ... + 1125624.

Almost surely, 2^225104900 is an apocalyptic number.

225104900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225104900 is an abundant number, since it is smaller than the sum of its proper divisors (263372950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225104900 is a wasteful number, since it uses less digits than its factorization.

225104900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251063 (or 2251056 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 225104900 is about 15003.4962592057. The cubic root of 225104900 is about 608.3147067961.

The spelling of 225104900 in words is "two hundred twenty-five million, one hundred four thousand, nine hundred".