225002500 has 30 divisors (see below), whose sum is σ = 492040934. Its totient is φ = 90000000.

The previous prime is 225002483. The next prime is 225002539. The reversal of 225002500 is 5200522.

225002500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 18045504 + 206956996 = 4248^2 + 14386^2 .

It is a super-2 number, since 2×225002500² = 101252250012500000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42501 + ... + 47500.

Almost surely, 2^225002500 is an apocalyptic number.

225002500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225002500 is an abundant number, since it is smaller than the sum of its proper divisors (267038434).

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

225002500 is an equidigital number, since it uses as much as digits as its factorization.

225002500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90025 (or 90008 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 225002500 is about 15000.0833331019. The cubic root of 225002500 is about 608.2224522164. Note that the first 3 decimals are identical.

It can be divided in two parts, 22500 and 2500, that multiplied together give a square (56250000 = 7500²).

The spelling of 225002500 in words is "two hundred twenty-five million, two thousand, five hundred".