556331243 has 8 divisors (see below), whose sum is σ = 599491200. Its totient is φ = 513223488.

The previous prime is 556331233. The next prime is 556331261. The reversal of 556331243 is 342133655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 556331243 - 2⁶ = 556331179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556331203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10703 + ... + 35031.

It is an arithmetic number, because the mean of its divisors is an integer number (74936400).

Almost surely, 2^556331243 is an apocalyptic number.

556331243 is a deficient number, since it is larger than the sum of its proper divisors (43159957).

556331243 is a wasteful number, since it uses less digits than its factorization.

556331243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26101.

The product of its digits is 32400, while the sum is 32.

The square root of 556331243 is about 23586.6751154121. The cubic root of 556331243 is about 822.4531154620.

Adding to 556331243 its reverse (342133655), we get a palindrome (898464898).

The spelling of 556331243 in words is "five hundred fifty-six million, three hundred thirty-one thousand, two hundred forty-three".