556456617 has 6 divisors (see below), whose sum is σ = 803770682. Its totient is φ = 370971072.

The previous prime is 556456613. The next prime is 556456619. The reversal of 556456617 is 716654655.

It can be written as a sum of positive squares in only one way, i.e., 312440976 + 244015641 = 17676^2 + 15621^2 .

It is not a de Polignac number, because 556456617 - 2² = 556456613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556456613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30914248 + ... + 30914265.

Almost surely, 2^556456617 is an apocalyptic number.

It is an amenable number.

556456617 is a deficient number, since it is larger than the sum of its proper divisors (247314065).

556456617 is a wasteful number, since it uses less digits than its factorization.

556456617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61828519 (or 61828516 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 556456617 is about 23589.3326950976. The cubic root of 556456617 is about 822.5148931010.

The spelling of 556456617 in words is "five hundred fifty-six million, four hundred fifty-six thousand, six hundred seventeen".