225523291 has 8 divisors (see below), whose sum is σ = 257832704. Its totient is φ = 193236840.

The previous prime is 225523279. The next prime is 225523297. The reversal of 225523291 is 192325522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225523291 - 2²⁵ = 191968859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225523297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31036 + ... + 37606.

It is an arithmetic number, because the mean of its divisors is an integer number (32229088).

Almost surely, 2^225523291 is an apocalyptic number.

225523291 is a deficient number, since it is larger than the sum of its proper divisors (32309413).

225523291 is an equidigital number, since it uses as much as digits as its factorization.

225523291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11481.

The product of its digits is 10800, while the sum is 31.

The square root of 225523291 is about 15017.4329031296. The cubic root of 225523291 is about 608.6913547166.

The spelling of 225523291 in words is "two hundred twenty-five million, five hundred twenty-three thousand, two hundred ninety-one".