225522004 has 6 divisors (see below), whose sum is σ = 394663514. Its totient is φ = 112761000.

The previous prime is 225521987. The next prime is 225522029. The reversal of 225522004 is 400225522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 212576400 + 12945604 = 14580^2 + 3598^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 28190247 + ... + 28190254.

Almost surely, 2^225522004 is an apocalyptic number.

It is an amenable number.

225522004 is a deficient number, since it is larger than the sum of its proper divisors (169141510).

225522004 is a wasteful number, since it uses less digits than its factorization.

225522004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56380505 (or 56380503 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 225522004 is about 15017.3900528687. The cubic root of 225522004 is about 608.6901968358.

Adding to 225522004 its reverse (400225522), we get a palindrome (625747526).

The spelling of 225522004 in words is "two hundred twenty-five million, five hundred twenty-two thousand, four".