225776590 has 64 divisors (see below), whose sum is σ = 456353856. Its totient is φ = 79875072.

The previous prime is 225776587. The next prime is 225776597. The reversal of 225776590 is 95677522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225776597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 350809 + ... + 351451.

It is an arithmetic number, because the mean of its divisors is an integer number (7130529).

Almost surely, 2^225776590 is an apocalyptic number.

225776590 is an abundant number, since it is smaller than the sum of its proper divisors (230577266).

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

225776590 is a wasteful number, since it uses less digits than its factorization.

225776590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 225776590 is about 15025.8640350564. The cubic root of 225776590 is about 608.9191556138.

The spelling of 225776590 in words is "two hundred twenty-five million, seven hundred seventy-six thousand, five hundred ninety".