225526100 has 36 divisors (see below), whose sum is σ = 502626684. Its totient is φ = 87770880.

The previous prime is 225526079. The next prime is 225526111. The reversal of 225526100 is 1625522.

It can be written as a sum of positive squares in 6 ways, for example, as 1844164 + 223681936 = 1358^2 + 14956^2 .

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, 26777 + ... + 34176.

Almost surely, 2^225526100 is an apocalyptic number.

225526100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225526100 is an abundant number, since it is smaller than the sum of its proper divisors (277100584).

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

225526100 is a wasteful number, since it uses less digits than its factorization.

225526100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61004 (or 60997 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 225526100 is about 15017.5264274780. The cubic root of 225526100 is about 608.6938818863.

The spelling of 225526100 in words is "two hundred twenty-five million, five hundred twenty-six thousand, one hundred".