2256457031 has 4 divisors (see below), whose sum is σ = 2257134552. Its totient is φ = 2255779512.

The previous prime is 2256457009. The next prime is 2256457117. The reversal of 2256457031 is 1307546522.

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 2256457031 - 2¹⁴ = 2256440647 is a prime.

It is a super-2 number, since 2×2256457031² = 10183196665498669922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2256456982 and 2256457000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256457531) 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, 333740 + ... + 340433.

It is an arithmetic number, because the mean of its divisors is an integer number (564283638).

Almost surely, 2^2256457031 is an apocalyptic number.

2256457031 is a deficient number, since it is larger than the sum of its proper divisors (677521).

2256457031 is an equidigital number, since it uses as much as digits as its factorization.

2256457031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677520.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 2256457031 is about 47502.1792236946. The cubic root of 2256457031 is about 1311.6229968413.

The spelling of 2256457031 in words is "two billion, two hundred fifty-six million, four hundred fifty-seven thousand, thirty-one".