556162861 has 2 divisors, whose sum is σ = 556162862. Its totient is φ = 556162860.

The previous prime is 556162853. The next prime is 556162879. The reversal of 556162861 is 168261655.

556162861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381420900 + 174741961 = 19530^2 + 13219^2 .

It is a cyclic number.

It is not a de Polignac number, because 556162861 - 2³ = 556162853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556162801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278081430 + 278081431.

It is an arithmetic number, because the mean of its divisors is an integer number (278081431).

Almost surely, 2^556162861 is an apocalyptic number.

It is an amenable number.

556162861 is a deficient number, since it is larger than the sum of its proper divisors (1).

556162861 is an equidigital number, since it uses as much as digits as its factorization.

556162861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 556162861 is about 23583.1054146819. The cubic root of 556162861 is about 822.3701311631.

The spelling of 556162861 in words is "five hundred fifty-six million, one hundred sixty-two thousand, eight hundred sixty-one".