225553025 has 12 divisors (see below), whose sum is σ = 296138412. Its totient is φ = 169827840.

The previous prime is 225552997. The next prime is 225553057. The reversal of 225553025 is 520355522.

It can be written as a sum of positive squares in 6 ways, for example, as 28206721 + 197346304 = 5311^2 + 14048^2 .

It is not a de Polignac number, because 225553025 - 2⁶ = 225552961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264932 + ... + 265781.

It is an arithmetic number, because the mean of its divisors is an integer number (24678201).

Almost surely, 2^225553025 is an apocalyptic number.

225553025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225553025 is a deficient number, since it is larger than the sum of its proper divisors (70585387).

225553025 is a wasteful number, since it uses less digits than its factorization.

225553025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530740 (or 530735 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 225553025 is about 15018.4228532826. The cubic root of 225553025 is about 608.7181044051.

The spelling of 225553025 in words is "two hundred twenty-five million, five hundred fifty-three thousand, twenty-five".