225043025 has 12 divisors (see below), whose sum is σ = 295468812. Its totient is φ = 169443840.

The previous prime is 225042989. The next prime is 225043031. The reversal of 225043025 is 520340522.

225043025 is digitally balanced in base 2, 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 6 ways, for example, as 1002001 + 224041024 = 1001^2 + 14968^2 .

It is a de Polignac number, because none of the positive numbers 2^k-225043025 is a prime.

It is a Duffinian 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, 264332 + ... + 265181.

It is an arithmetic number, because the mean of its divisors is an integer number (24622401).

Almost surely, 2^225043025 is an apocalyptic number.

225043025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225043025 is a deficient number, since it is larger than the sum of its proper divisors (70425787).

225043025 is a wasteful number, since it uses less digits than its factorization.

225043025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529540 (or 529535 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 225043025 is about 15001.4340981121. The cubic root of 225043025 is about 608.2589654925.

Adding to 225043025 its reverse (520340522), we get a palindrome (745383547).

The spelling of 225043025 in words is "two hundred twenty-five million, forty-three thousand, twenty-five".