55193982717 has 16 divisors (see below), whose sum is σ = 76979422080. Its totient is φ = 35110090752.

The previous prime is 55193982713. The next prime is 55193982749. The reversal of 55193982717 is 71728939155.

It is not a de Polignac number, because 55193982717 - 2² = 55193982713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55193982713) 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, 949668 + ... + 1006109.

It is an arithmetic number, because the mean of its divisors is an integer number (4811213880).

Almost surely, 2^55193982717 is an apocalyptic number.

It is an amenable number.

55193982717 is a deficient number, since it is larger than the sum of its proper divisors (21785439363).

55193982717 is a wasteful number, since it uses less digits than its factorization.

55193982717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956212.

The product of its digits is 4762800, while the sum is 57.

The spelling of 55193982717 in words is "fifty-five billion, one hundred ninety-three million, nine hundred eighty-two thousand, seven hundred seventeen".