225727331 has 4 divisors (see below), whose sum is σ = 227725032. Its totient is φ = 223729632.

The previous prime is 225727321. The next prime is 225727349. The reversal of 225727331 is 133727522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225727331 - 2¹⁸ = 225465187 is a prime.

It is a super-2 number, since 2×225727331² = 101905655920767122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225727321) 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, 998681 + ... + 998906.

It is an arithmetic number, because the mean of its divisors is an integer number (56931258).

Almost surely, 2^225727331 is an apocalyptic number.

225727331 is a deficient number, since it is larger than the sum of its proper divisors (1997701).

225727331 is a wasteful number, since it uses less digits than its factorization.

225727331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997700.

The product of its digits is 17640, while the sum is 32.

The square root of 225727331 is about 15024.2248052936. The cubic root of 225727331 is about 608.8748685742.

The spelling of 225727331 in words is "two hundred twenty-five million, seven hundred twenty-seven thousand, three hundred thirty-one".