556611601 has 16 divisors (see below), whose sum is σ = 685770624. Its totient is φ = 439939584.

The previous prime is 556611571. The next prime is 556611617. The reversal of 556611601 is 106116655.

It is not a de Polignac number, because 556611601 - 2¹¹ = 556609553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556611301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105441 + ... + 110593.

It is an arithmetic number, because the mean of its divisors is an integer number (42860664).

Almost surely, 2^556611601 is an apocalyptic number.

It is an amenable number.

556611601 is a deficient number, since it is larger than the sum of its proper divisors (129159023).

556611601 is a wasteful number, since it uses less digits than its factorization.

556611601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 556611601 is about 23592.6175105689. The cubic root of 556611601 is about 822.5912481490.

The spelling of 556611601 in words is "five hundred fifty-six million, six hundred eleven thousand, six hundred one".