225590889 has 4 divisors (see below), whose sum is σ = 300787856. Its totient is φ = 150393924.

The previous prime is 225590879. The next prime is 225590891. The reversal of 225590889 is 988095522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 225590889 - 2⁹ = 225590377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225590879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37598479 + ... + 37598484.

It is an arithmetic number, because the mean of its divisors is an integer number (75196964).

Almost surely, 2^225590889 is an apocalyptic number.

It is an amenable number.

225590889 is a deficient number, since it is larger than the sum of its proper divisors (75196967).

225590889 is an equidigital number, since it uses as much as digits as its factorization.

225590889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75196966.

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 225590889 is about 15019.6833854779. The cubic root of 225590889 is about 608.7521647075.

The spelling of 225590889 in words is "two hundred twenty-five million, five hundred ninety thousand, eight hundred eighty-nine".