2256586531 has 8 divisors (see below), whose sum is σ = 2266027520. Its totient is φ = 2247166152.

The previous prime is 2256586463. The next prime is 2256586559. The reversal of 2256586531 is 1356856522.

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

It is a cyclic number.

It is not a de Polignac number, because 2256586531 - 2⁷ = 2256586403 is a prime.

It is a super-2 number, since 2×2256586531² = 10184365543781227922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256586571) 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, 237490 + ... + 246808.

It is an arithmetic number, because the mean of its divisors is an integer number (283253440).

Almost surely, 2^2256586531 is an apocalyptic number.

2256586531 is a deficient number, since it is larger than the sum of its proper divisors (9440989).

2256586531 is an equidigital number, since it uses as much as digits as its factorization.

2256586531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10305.

The product of its digits is 432000, while the sum is 43.

The square root of 2256586531 is about 47503.5422994959. The cubic root of 2256586531 is about 1311.6480880834.

The spelling of 2256586531 in words is "two billion, two hundred fifty-six million, five hundred eighty-six thousand, five hundred thirty-one".