55637788131 has 6 divisors (see below), whose sum is σ = 80365693980. Its totient is φ = 37091858748.

The previous prime is 55637788097. The next prime is 55637788133. The reversal of 55637788131 is 13188773655.

55637788131 is a `hidden beast` number, since 5 + 563 + 7 + 78 + 8 + 1 + 3 + 1 = 666.

55637788131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-55637788131 is a prime.

It is a super-2 number, since 2×55637788131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55637788133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3090988221 + ... + 3090988238.

It is an arithmetic number, because the mean of its divisors is an integer number (13394282330).

Almost surely, 2^55637788131 is an apocalyptic number.

55637788131 is a deficient number, since it is larger than the sum of its proper divisors (24727905849).

55637788131 is a wasteful number, since it uses less digits than its factorization.

55637788131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6181976465 (or 6181976462 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The spelling of 55637788131 in words is "fifty-five billion, six hundred thirty-seven million, seven hundred eighty-eight thousand, one hundred thirty-one".