556009963 has 2 divisors, whose sum is σ = 556009964. Its totient is φ = 556009962.

The previous prime is 556009931. The next prime is 556009969. The reversal of 556009963 is 369900655.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556009963 - 2⁵ = 556009931 is a prime.

It is a super-2 number, since 2×556009963² = 618294157910522738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (556009969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278004981 + 278004982.

It is an arithmetic number, because the mean of its divisors is an integer number (278004982).

Almost surely, 2^556009963 is an apocalyptic number.

556009963 is a deficient number, since it is larger than the sum of its proper divisors (1).

556009963 is an equidigital number, since it uses as much as digits as its factorization.

556009963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 218700, while the sum is 43.

The square root of 556009963 is about 23579.8635068145. The cubic root of 556009963 is about 822.2947633878.

The spelling of 556009963 in words is "five hundred fifty-six million, nine thousand, nine hundred sixty-three".