55105749044 has 12 divisors (see below), whose sum is σ = 96565560000. Its totient is φ = 27515589048.

The previous prime is 55105749043. The next prime is 55105749071. The reversal of 55105749044 is 44094750155.

It is a junction number, because it is equal to n+sod(n) for n = 55105748986 and 55105749004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105749043) 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, 9318044 + ... + 9323955.

It is an arithmetic number, because the mean of its divisors is an integer number (8047130000).

Almost surely, 2^55105749044 is an apocalyptic number.

It is an amenable number.

55105749044 is a deficient number, since it is larger than the sum of its proper divisors (41459810956).

55105749044 is a wasteful number, since it uses less digits than its factorization.

55105749044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18642742 (or 18642740 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 55105749044 in words is "fifty-five billion, one hundred five million, seven hundred forty-nine thousand, forty-four".