556705361 has 4 divisors (see below), whose sum is σ = 557079732. Its totient is φ = 556330992.

The previous prime is 556705333. The next prime is 556705379. The reversal of 556705361 is 163507655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 426174736 + 130530625 = 20644^2 + 11425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556705361 is a prime.

It is a super-2 number, since 2×556705361² = 619841717932280642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (556725361) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 184946 + ... + 187931.

It is an arithmetic number, because the mean of its divisors is an integer number (139269933).

Almost surely, 2^556705361 is an apocalyptic number.

It is an amenable number.

556705361 is a deficient number, since it is larger than the sum of its proper divisors (374371).

556705361 is a wasteful number, since it uses less digits than its factorization.

556705361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374370.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 556705361 is about 23594.6044891623. The cubic root of 556705361 is about 822.6374334513.

The spelling of 556705361 in words is "five hundred fifty-six million, seven hundred five thousand, three hundred sixty-one".