556992403 has 48 divisors (see below), whose sum is σ = 691080768. Its totient is φ = 446054400.

The previous prime is 556992389. The next prime is 556992419. The reversal of 556992403 is 304299655.

It is a de Polignac number, because none of the positive numbers 2^k-556992403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 556992403.

It is not an unprimeable number, because it can be changed into a prime (556992433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2885875 + ... + 2886067.

It is an arithmetic number, because the mean of its divisors is an integer number (14397516).

Almost surely, 2^556992403 is an apocalyptic number.

556992403 is a deficient number, since it is larger than the sum of its proper divisors (134088365).

556992403 is a wasteful number, since it uses less digits than its factorization.

556992403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 43.

The square root of 556992403 is about 23600.6864942527. The cubic root of 556992403 is about 822.7787954347.

The spelling of 556992403 in words is "five hundred fifty-six million, nine hundred ninety-two thousand, four hundred three".