2256500424157 has 4 divisors (see below), whose sum is σ = 2578857627616. Its totient is φ = 1934143220700.

The previous prime is 2256500424149. The next prime is 2256500424179. The reversal of 2256500424157 is 7514240056522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2256500424157 - 2³ = 2256500424149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256500404157) 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, 161178601719 + ... + 161178601732.

It is an arithmetic number, because the mean of its divisors is an integer number (644714406904).

Almost surely, 2^{2256500424157} is an apocalyptic number.

It is an amenable number.

2256500424157 is a deficient number, since it is larger than the sum of its proper divisors (322357203459).

2256500424157 is an equidigital number, since it uses as much as digits as its factorization.

2256500424157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322357203458.

The product of its (nonzero) digits is 672000, while the sum is 43.

The spelling of 2256500424157 in words is "two trillion, two hundred fifty-six billion, five hundred million, four hundred twenty-four thousand, one hundred fifty-seven".