225302311 has 8 divisors (see below), whose sum is σ = 247212000. Its totient is φ = 204046752.

The previous prime is 225302291. The next prime is 225302317. The reversal of 225302311 is 113203522.

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

It is not a de Polignac number, because 225302311 - 2⁷ = 225302183 is a prime.

It is a super-2 number, since 2×225302311² = 101522262683881442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225302317) 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, 162811 + ... + 164188.

It is an arithmetic number, because the mean of its divisors is an integer number (30901500).

Almost surely, 2^225302311 is an apocalyptic number.

225302311 is a deficient number, since it is larger than the sum of its proper divisors (21909689).

225302311 is a wasteful number, since it uses less digits than its factorization.

225302311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327065.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 225302311 is about 15010.0736507187. The cubic root of 225302311 is about 608.4924801024.

Adding to 225302311 its reverse (113203522), we get a palindrome (338505833).

The spelling of 225302311 in words is "two hundred twenty-five million, three hundred two thousand, three hundred eleven".