556434403 has 4 divisors (see below), whose sum is σ = 635925040. Its totient is φ = 476943768.

The previous prime is 556434383. The next prime is 556434409. The reversal of 556434403 is 304434655.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 556434403 - 2²⁵ = 522879971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556434409) 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 3 ways as a sum of consecutive naturals, for example, 39745308 + ... + 39745321.

It is an arithmetic number, because the mean of its divisors is an integer number (158981260).

Almost surely, 2^556434403 is an apocalyptic number.

556434403 is a deficient number, since it is larger than the sum of its proper divisors (79490637).

556434403 is an equidigital number, since it uses as much as digits as its factorization.

556434403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79490636.

The product of its (nonzero) digits is 86400, while the sum is 34.

The square root of 556434403 is about 23588.8618419796. The cubic root of 556434403 is about 822.5039478997.

The spelling of 556434403 in words is "five hundred fifty-six million, four hundred thirty-four thousand, four hundred three".