55120604436123 has 4 divisors (see below), whose sum is σ = 73494139248168. Its totient is φ = 36747069624080.

The previous prime is 55120604436101. The next prime is 55120604436173. The reversal of 55120604436123 is 32163440602155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55120604436123 - 2⁵ = 55120604436091 is a prime.

It is a super-2 number, since 2×55120604436123² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55120604436173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9186767406018 + ... + 9186767406023.

It is an arithmetic number, because the mean of its divisors is an integer number (18373534812042).

Almost surely, 2^{55120604436123} is an apocalyptic number.

55120604436123 is a deficient number, since it is larger than the sum of its proper divisors (18373534812045).

55120604436123 is a wasteful number, since it uses less digits than its factorization.

55120604436123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18373534812044.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 55120604436123 in words is "fifty-five trillion, one hundred twenty billion, six hundred four million, four hundred thirty-six thousand, one hundred twenty-three".