556106056131 has 4 divisors (see below), whose sum is σ = 741474741512. Its totient is φ = 370737370752.

The previous prime is 556106056123. The next prime is 556106056139. The reversal of 556106056131 is 131650601655.

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

It is an interprime number because it is at equal distance from previous prime (556106056123) and next prime (556106056139).

It is not a de Polignac number, because 556106056131 - 2³ = 556106056123 is a prime.

It is a super-2 number, since 2×556106056131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 556106056131.

It is not an unprimeable number, because it can be changed into a prime (556106056139) 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, 92684342686 + ... + 92684342691.

It is an arithmetic number, because the mean of its divisors is an integer number (185368685378).

Almost surely, 2^556106056131 is an apocalyptic number.

556106056131 is a deficient number, since it is larger than the sum of its proper divisors (185368685381).

556106056131 is a wasteful number, since it uses less digits than its factorization.

556106056131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185368685380.

The product of its (nonzero) digits is 81000, while the sum is 39.

Adding to 556106056131 its reverse (131650601655), we get a palindrome (687756657786).

The spelling of 556106056131 in words is "five hundred fifty-six billion, one hundred six million, fifty-six thousand, one hundred thirty-one".