225024978 has 16 divisors (see below), whose sum is σ = 465569280. Its totient is φ = 72421776.

The previous prime is 225024967. The next prime is 225025043. The reversal of 225024978 is 879420522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646450 + ... + 646797.

It is an arithmetic number, because the mean of its divisors is an integer number (29098080).

Almost surely, 2^225024978 is an apocalyptic number.

225024978 is an abundant number, since it is smaller than the sum of its proper divisors (240544302).

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

225024978 is a wasteful number, since it uses less digits than its factorization.

225024978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293281.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 225024978 is about 15000.8325768939. The cubic root of 225024978 is about 608.2427055751.

The spelling of 225024978 in words is "two hundred twenty-five million, twenty-four thousand, nine hundred seventy-eight".