556576873 has 2 divisors, whose sum is σ = 556576874. Its totient is φ = 556576872.

The previous prime is 556576859. The next prime is 556576879. The reversal of 556576873 is 378675655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 537636969 + 18939904 = 23187^2 + 4352^2 .

It is a cyclic number.

It is not a de Polignac number, because 556576873 - 2⁵ = 556576841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556576873.

It is not a weakly prime, because it can be changed into another prime (556576879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278288436 + 278288437.

It is an arithmetic number, because the mean of its divisors is an integer number (278288437).

Almost surely, 2^556576873 is an apocalyptic number.

It is an amenable number.

556576873 is a deficient number, since it is larger than the sum of its proper divisors (1).

556576873 is an equidigital number, since it uses as much as digits as its factorization.

556576873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292000, while the sum is 52.

The square root of 556576873 is about 23591.8815061453. The cubic root of 556576873 is about 822.5741401435.

The spelling of 556576873 in words is "five hundred fifty-six million, five hundred seventy-six thousand, eight hundred seventy-three".