556033506331 has 4 divisors (see below), whose sum is σ = 563650403752. Its totient is φ = 548416608912.

The previous prime is 556033506323. The next prime is 556033506359. The reversal of 556033506331 is 133605330655.

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

It is a cyclic number.

It is not a de Polignac number, because 556033506331 - 2³ = 556033506323 is a prime.

It is a super-2 number, since 2×556033506331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556033503331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3808448601 + ... + 3808448746.

It is an arithmetic number, because the mean of its divisors is an integer number (140912600938).

Almost surely, 2^556033506331 is an apocalyptic number.

556033506331 is a deficient number, since it is larger than the sum of its proper divisors (7616897421).

556033506331 is an equidigital number, since it uses as much as digits as its factorization.

556033506331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7616897420.

The product of its (nonzero) digits is 364500, while the sum is 40.

Adding to 556033506331 its reverse (133605330655), we get a palindrome (689638836986).

The spelling of 556033506331 in words is "five hundred fifty-six billion, thirty-three million, five hundred six thousand, three hundred thirty-one".