225751431 has 8 divisors (see below), whose sum is σ = 301333120. Its totient is φ = 150335352.

The previous prime is 225751403. The next prime is 225751447. The reversal of 225751431 is 134157522.

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

It is not a de Polignac number, because 225751431 - 2⁹ = 225750919 is a prime.

It is a super-2 number, since 2×225751431² = 101927417197095522, 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 (225751531) 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, 38185 + ... + 43698.

It is an arithmetic number, because the mean of its divisors is an integer number (37666640).

Almost surely, 2^225751431 is an apocalyptic number.

225751431 is a deficient number, since it is larger than the sum of its proper divisors (75581689).

225751431 is an equidigital number, since it uses as much as digits as its factorization.

225751431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82805.

The product of its digits is 8400, while the sum is 30.

The square root of 225751431 is about 15025.0268219395. The cubic root of 225751431 is about 608.8965368440.

The spelling of 225751431 in words is "two hundred twenty-five million, seven hundred fifty-one thousand, four hundred thirty-one".