55723905122 has 6 divisors (see below), whose sum is σ = 83586358443. Its totient is φ = 27861785642.

The previous prime is 55723905091. The next prime is 55723905143. The reversal of 55723905122 is 22150932755.

55723905122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 27861952561 + 27861952561 = 166919^2 + 166919^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166919.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55723905122.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 250379 + ... + 417297.

Almost surely, 2^55723905122 is an apocalyptic number.

55723905122 is a deficient number, since it is larger than the sum of its proper divisors (27862453321).

55723905122 is an frugal number, since it uses more digits than its factorization.

55723905122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333840 (or 166921 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 55723905122 in words is "fifty-five billion, seven hundred twenty-three million, nine hundred five thousand, one hundred twenty-two".