556000061 has 4 divisors (see below), whose sum is σ = 556056672. Its totient is φ = 555943452.

The previous prime is 556000033. The next prime is 556000069. The reversal of 556000061 is 160000655.

556000061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 556000061 - 2¹⁴ = 555983677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556000069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9335 + ... + 34628.

It is an arithmetic number, because the mean of its divisors is an integer number (139014168).

Almost surely, 2^556000061 is an apocalyptic number.

It is an amenable number.

556000061 is a deficient number, since it is larger than the sum of its proper divisors (56611).

556000061 is a wasteful number, since it uses less digits than its factorization.

556000061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56610.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 556000061 is about 23579.6535385913. The cubic root of 556000061 is about 822.2898819339.

The spelling of 556000061 in words is "five hundred fifty-six million, sixty-one", and thus it is an aban number.