55123614585 has 128 divisors (see below), whose sum is σ = 110392934400. Its totient is φ = 25894598400.

The previous prime is 55123614583. The next prime is 55123614619. The reversal of 55123614585 is 58541632155.

55123614585 is a `hidden beast` number, since 5 + 5 + 1 + 2 + 3 + 61 + 4 + 585 = 666.

It is not a de Polignac number, because 55123614585 - 2¹ = 55123614583 is a prime.

It is a super-2 number, since 2×55123614585² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55123614585.

It is not an unprimeable number, because it can be changed into a prime (55123614583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19333410 + ... + 19336260.

It is an arithmetic number, because the mean of its divisors is an integer number (862444800).

Almost surely, 2^55123614585 is an apocalyptic number.

It is an amenable number.

55123614585 is an abundant number, since it is smaller than the sum of its proper divisors (55269319815).

55123614585 is a wasteful number, since it uses less digits than its factorization.

55123614585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380 (or 3374 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The spelling of 55123614585 in words is "fifty-five billion, one hundred twenty-three million, six hundred fourteen thousand, five hundred eighty-five".