556304026 has 4 divisors (see below), whose sum is σ = 834456042. Its totient is φ = 278152012.

The previous prime is 556304011. The next prime is 556304027. The reversal of 556304026 is 620403655.

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

It can be written as a sum of positive squares in only one way, i.e., 390023001 + 166281025 = 19749^2 + 12895^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (556304027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139076005 + ... + 139076008.

Almost surely, 2^556304026 is an apocalyptic number.

556304026 is a deficient number, since it is larger than the sum of its proper divisors (278152016).

556304026 is a wasteful number, since it uses less digits than its factorization.

556304026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278152015.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 556304026 is about 23586.0981512415. The cubic root of 556304026 is about 822.4397031459.

The spelling of 556304026 in words is "five hundred fifty-six million, three hundred four thousand, twenty-six".