556788953 has 4 divisors (see below), whose sum is σ = 636330240. Its totient is φ = 477247668.

The previous prime is 556788941. The next prime is 556788989. The reversal of 556788953 is 359887655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 556788953 - 2⁶ = 556788889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556788653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39770633 + ... + 39770646.

It is an arithmetic number, because the mean of its divisors is an integer number (159082560).

Almost surely, 2^556788953 is an apocalyptic number.

It is an amenable number.

556788953 is a deficient number, since it is larger than the sum of its proper divisors (79541287).

556788953 is an equidigital number, since it uses as much as digits as its factorization.

556788953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79541286.

The product of its digits is 9072000, while the sum is 56.

The square root of 556788953 is about 23596.3758446080. The cubic root of 556788953 is about 822.6786057192.

The spelling of 556788953 in words is "five hundred fifty-six million, seven hundred eighty-eight thousand, nine hundred fifty-three".