556845494 has 4 divisors (see below), whose sum is σ = 835268244. Its totient is φ = 278422746.

The previous prime is 556845473. The next prime is 556845547. The reversal of 556845494 is 494548655.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 139211372 + ... + 139211375.

It is an arithmetic number, because the mean of its divisors is an integer number (208817061).

Almost surely, 2^556845494 is an apocalyptic number.

556845494 is a deficient number, since it is larger than the sum of its proper divisors (278422750).

556845494 is a wasteful number, since it uses less digits than its factorization.

556845494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278422749.

The product of its digits is 3456000, while the sum is 50.

The square root of 556845494 is about 23597.5739007212. The cubic root of 556845494 is about 822.7064519953.

The spelling of 556845494 in words is "five hundred fifty-six million, eight hundred forty-five thousand, four hundred ninety-four".