556913629 has 2 divisors, whose sum is σ = 556913630. Its totient is φ = 556913628.

The previous prime is 556913551. The next prime is 556913641. The reversal of 556913629 is 926319655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 445294404 + 111619225 = 21102^2 + 10565^2 .

It is a cyclic number.

It is not a de Polignac number, because 556913629 - 2⁷ = 556913501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556913689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278456814 + 278456815.

It is an arithmetic number, because the mean of its divisors is an integer number (278456815).

Almost surely, 2^556913629 is an apocalyptic number.

It is an amenable number.

556913629 is a deficient number, since it is larger than the sum of its proper divisors (1).

556913629 is an equidigital number, since it uses as much as digits as its factorization.

556913629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 46.

The square root of 556913629 is about 23599.0175431097. The cubic root of 556913629 is about 822.7400057779.

The spelling of 556913629 in words is "five hundred fifty-six million, nine hundred thirteen thousand, six hundred twenty-nine".