556012426 has 4 divisors (see below), whose sum is σ = 834018642. Its totient is φ = 278006212.

The previous prime is 556012411. The next prime is 556012451. The reversal of 556012426 is 624210655.

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., 302725201 + 253287225 = 17399^2 + 15915^2 .

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 an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139003105 + ... + 139003108.

Almost surely, 2^556012426 is an apocalyptic number.

556012426 is a deficient number, since it is larger than the sum of its proper divisors (278006216).

556012426 is a wasteful number, since it uses less digits than its factorization.

556012426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278006215.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 556012426 is about 23579.9157335220. The cubic root of 556012426 is about 822.2959775801.

The spelling of 556012426 in words is "five hundred fifty-six million, twelve thousand, four hundred twenty-six".