1617252256 has 12 divisors (see below), whose sum is σ = 3183965442. Its totient is φ = 808626112.

The previous prime is 1617252223. The next prime is 1617252311. The reversal of 1617252256 is 6522527161.

It can be written as a sum of positive squares in only one way, i.e., 917120656 + 700131600 = 30284^2 + 26460^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25269535 + ... + 25269598.

Almost surely, 2^1617252256 is an apocalyptic number.

1617252256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1617252256 is a deficient number, since it is larger than the sum of its proper divisors (1566713186).

1617252256 is an equidigital number, since it uses as much as digits as its factorization.

1617252256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50539143 (or 50539135 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 1617252256 is about 40215.0749843886. The cubic root of 1617252256 is about 1173.7959008922.

The spelling of 1617252256 in words is "one billion, six hundred seventeen million, two hundred fifty-two thousand, two hundred fifty-six".