556288129 has 2 divisors, whose sum is σ = 556288130. Its totient is φ = 556288128.

The previous prime is 556288079. The next prime is 556288133. The reversal of 556288129 is 921882655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406103104 + 150185025 = 20152^2 + 12255^2 .

It is a cyclic number.

It is not a de Polignac number, because 556288129 - 2⁷ = 556288001 is a prime.

It is not a weakly prime, because it can be changed into another prime (556288429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278144064 + 278144065.

It is an arithmetic number, because the mean of its divisors is an integer number (278144065).

Almost surely, 2^556288129 is an apocalyptic number.

It is an amenable number.

556288129 is a deficient number, since it is larger than the sum of its proper divisors (1).

556288129 is an equidigital number, since it uses as much as digits as its factorization.

556288129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 46.

The square root of 556288129 is about 23585.7611494732. The cubic root of 556288129 is about 822.4318690313.

The spelling of 556288129 in words is "five hundred fifty-six million, two hundred eighty-eight thousand, one hundred twenty-nine".