2256664231 has 4 divisors (see below), whose sum is σ = 2311704864. Its totient is φ = 2201623600.

The previous prime is 2256664211. The next prime is 2256664237. The reversal of 2256664231 is 1324666522.

2256664231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2256664231 - 2⁵ = 2256664199 is a prime.

It is a super-2 number, since 2×2256664231² = 10185066902949642722, 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 (2256664237) 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, 27520255 + ... + 27520336.

It is an arithmetic number, because the mean of its divisors is an integer number (577926216).

Almost surely, 2^2256664231 is an apocalyptic number.

2256664231 is a deficient number, since it is larger than the sum of its proper divisors (55040633).

2256664231 is an equidigital number, since it uses as much as digits as its factorization.

2256664231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55040632.

The product of its digits is 103680, while the sum is 37.

The square root of 2256664231 is about 47504.3601262032. The cubic root of 2256664231 is about 1311.6631423679.

The spelling of 2256664231 in words is "two billion, two hundred fifty-six million, six hundred sixty-four thousand, two hundred thirty-one".