2256951523 has 4 divisors (see below), whose sum is σ = 2299535568. Its totient is φ = 2214367480.

The previous prime is 2256951509. The next prime is 2256951547. The reversal of 2256951523 is 3251596522.

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 2256951523 - 2⁵ = 2256951491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256951923) 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, 21291943 + ... + 21292048.

It is an arithmetic number, because the mean of its divisors is an integer number (574883892).

Almost surely, 2^2256951523 is an apocalyptic number.

2256951523 is a deficient number, since it is larger than the sum of its proper divisors (42584045).

2256951523 is an equidigital number, since it uses as much as digits as its factorization.

2256951523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42584044.

The product of its digits is 162000, while the sum is 40.

The square root of 2256951523 is about 47507.3838787193. The cubic root of 2256951523 is about 1311.7188018574.

The spelling of 2256951523 in words is "two billion, two hundred fifty-six million, nine hundred fifty-one thousand, five hundred twenty-three".