225525004 has 6 divisors (see below), whose sum is σ = 394668764. Its totient is φ = 112762500.

The previous prime is 225524987. The next prime is 225525011. The reversal of 225525004 is 400525522.

It is a happy number.

225525004 is digitally balanced in base 2 and base 3, because in such bases 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 225525004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28190622 + ... + 28190629.

Almost surely, 2^225525004 is an apocalyptic number.

It is an amenable number.

225525004 is a deficient number, since it is larger than the sum of its proper divisors (169143760).

225525004 is a wasteful number, since it uses less digits than its factorization.

225525004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56381255 (or 56381253 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 225525004 is about 15017.4899367371. The cubic root of 225525004 is about 608.6928958518.

It can be divided in two parts, 22552 and 5004, that added together give a square (27556 = 166²).

The spelling of 225525004 in words is "two hundred twenty-five million, five hundred twenty-five thousand, four".