56055551111031 has 16 divisors (see below), whose sum is σ = 74938841366400. Its totient is φ = 37271316505248.

The previous prime is 56055551111009. The next prime is 56055551111069. The reversal of 56055551111031 is 13011115555065.

It is not a de Polignac number, because 56055551111031 - 2¹⁰ = 56055551110007 is a prime.

It is a super-2 number, since 2×56055551111031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56055551111431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113440960 + ... + 113934026.

It is an arithmetic number, because the mean of its divisors is an integer number (4683677585400).

Almost surely, 2^{56055551111031} is an apocalyptic number.

56055551111031 is a deficient number, since it is larger than the sum of its proper divisors (18883290255369).

56055551111031 is a wasteful number, since it uses less digits than its factorization.

56055551111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593438.

The product of its (nonzero) digits is 56250, while the sum is 39.

Adding to 56055551111031 its reverse (13011115555065), we get a palindrome (69066666666096).

The spelling of 56055551111031 in words is "fifty-six trillion, fifty-five billion, five hundred fifty-one million, one hundred eleven thousand, thirty-one".