225444680 has 32 divisors (see below), whose sum is σ = 507729600. Its totient is φ = 90092736.

The previous prime is 225444641. The next prime is 225444697. The reversal of 225444680 is 86444522.

It is a self number, because there is not a number n which added to its sum of digits gives 225444680.

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, 56429 + ... + 60291.

It is an arithmetic number, because the mean of its divisors is an integer number (15866550).

Almost surely, 2^225444680 is an apocalyptic number.

225444680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225444680 is an abundant number, since it is smaller than the sum of its proper divisors (282284920).

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

225444680 is a wasteful number, since it uses less digits than its factorization.

225444680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333 (or 5329 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 225444680 is about 15014.8153501800. The cubic root of 225444680 is about 608.6206223373.

The spelling of 225444680 in words is "two hundred twenty-five million, four hundred forty-four thousand, six hundred eighty".