55606804377831 has 96 divisors (see below), whose sum is σ = 95889327206400. Its totient is φ = 31544460944640.

The previous prime is 55606804377829. The next prime is 55606804377857. The reversal of 55606804377831 is 13877340860655.

It is a happy number.

55606804377831 is a `hidden beast` number, since 5 + 5 + 60 + 68 + 0 + 437 + 7 + 83 + 1 = 666.

It is not a de Polignac number, because 55606804377831 - 2¹ = 55606804377829 is a prime.

It is a super-2 number, since 2×55606804377831² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55606804378831) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 128360650 + ... + 128793128.

It is an arithmetic number, because the mean of its divisors is an integer number (998847158400).

Almost surely, 2^{55606804377831} is an apocalyptic number.

55606804377831 is a deficient number, since it is larger than the sum of its proper divisors (40282522828569).

55606804377831 is a wasteful number, since it uses less digits than its factorization.

55606804377831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433051 (or 433039 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 63.

The spelling of 55606804377831 in words is "fifty-five trillion, six hundred six billion, eight hundred four million, three hundred seventy-seven thousand, eight hundred thirty-one".