55105446550923 has 16 divisors (see below), whose sum is σ = 82787525337600. Its totient is φ = 36219542332680.

The previous prime is 55105446550919. The next prime is 55105446550937. The reversal of 55105446550923 is 32905564450155.

55105446550923 is a `hidden beast` number, since 5 + 5 + 1 + 0 + 54 + 4 + 65 + 509 + 23 = 666.

It is not a de Polignac number, because 55105446550923 - 2² = 55105446550919 is a prime.

It is a super-2 number, since 2×55105446550923² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55105446550923.

It is not an unprimeable number, because it can be changed into a prime (55105446550223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14372832343 + ... + 14372836176.

It is an arithmetic number, because the mean of its divisors is an integer number (5174220333600).

Almost surely, 2^{55105446550923} is an apocalyptic number.

55105446550923 is a deficient number, since it is larger than the sum of its proper divisors (27682078786677).

55105446550923 is a wasteful number, since it uses less digits than its factorization.

55105446550923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28745668599 (or 28745668593 counting only the distinct ones).

The product of its (nonzero) digits is 16200000, while the sum is 54.

The spelling of 55105446550923 in words is "fifty-five trillion, one hundred five billion, four hundred forty-six million, five hundred fifty thousand, nine hundred twenty-three".