225516004 has 24 divisors (see below), whose sum is σ = 451552640. Its totient is φ = 96538176.

The previous prime is 225516001. The next prime is 225516017. The reversal of 225516004 is 400615522.

225516004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 225516004.

It is not an unprimeable number, because it can be changed into a prime (225516001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22912 + ... + 31240.

Almost surely, 2^225516004 is an apocalyptic number.

It is an amenable number.

225516004 is an abundant number, since it is smaller than the sum of its proper divisors (226036636).

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

225516004 is a wasteful number, since it uses less digits than its factorization.

225516004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9307 (or 9305 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 225516004 is about 15017.1902831389. The cubic root of 225516004 is about 608.6847987319.

The spelling of 225516004 in words is "two hundred twenty-five million, five hundred sixteen thousand, four".