225047979 has 24 divisors (see below), whose sum is σ = 352041872. Its totient is φ = 137712960.

The previous prime is 225047957. The next prime is 225047983. The reversal of 225047979 is 979740522.

225047979 is a `hidden beast` number, since 2 + 2 + 504 + 79 + 79 = 666.

It is not a de Polignac number, because 225047979 - 2⁵ = 225047947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225047909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15864 + ... + 26490.

Almost surely, 2^225047979 is an apocalyptic number.

225047979 is a deficient number, since it is larger than the sum of its proper divisors (126993893).

225047979 is a wasteful number, since it uses less digits than its factorization.

225047979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10827 (or 10824 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 225047979 is about 15001.5992147504. The cubic root of 225047979 is about 608.2634287765.

The spelling of 225047979 in words is "two hundred twenty-five million, forty-seven thousand, nine hundred seventy-nine".