225980645 has 32 divisors (see below), whose sum is σ = 305665920. Its totient is φ = 158941440.

The previous prime is 225980621. The next prime is 225980659. The reversal of 225980645 is 546089522.

225980645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225980645 - 2⁸ = 225980389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 596066 + ... + 596444.

It is an arithmetic number, because the mean of its divisors is an integer number (9552060).

Almost surely, 2^225980645 is an apocalyptic number.

It is an amenable number.

225980645 is a deficient number, since it is larger than the sum of its proper divisors (79685275).

225980645 is a wasteful number, since it uses less digits than its factorization.

225980645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 225980645 is about 15032.6526268653. The cubic root of 225980645 is about 609.1025457284.

The spelling of 225980645 in words is "two hundred twenty-five million, nine hundred eighty thousand, six hundred forty-five".