55111624125 has 32 divisors (see below), whose sum is σ = 91983006336. Its totient is φ = 29304000000.

The previous prime is 55111624123. The next prime is 55111624159. The reversal of 55111624125 is 52142611155.

It is a happy number.

It is not a de Polignac number, because 55111624125 - 2¹ = 55111624123 is a prime.

It is a super-2 number, since 2×55111624125² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55111624123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97876 + ... + 346125.

It is an arithmetic number, because the mean of its divisors is an integer number (2874468948).

Almost surely, 2^55111624125 is an apocalyptic number.

It is an amenable number.

55111624125 is a deficient number, since it is larger than the sum of its proper divisors (36871382211).

55111624125 is a wasteful number, since it uses less digits than its factorization.

55111624125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444350 (or 444340 counting only the distinct ones).

The product of its digits is 12000, while the sum is 33.

The spelling of 55111624125 in words is "fifty-five billion, one hundred eleven million, six hundred twenty-four thousand, one hundred twenty-five".