55993676917 has 16 divisors (see below), whose sum is σ = 60998842800. Its totient is φ = 51189903360.

The previous prime is 55993676899. The next prime is 55993676923. The reversal of 55993676917 is 71967639955.

It can be written as a sum of positive squares in 8 ways, for example, as 643586161 + 55350090756 = 25369^2 + 235266^2 .

It is a cyclic number.

It is not a de Polignac number, because 55993676917 - 2²⁷ = 55859459189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55993676987) 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, 15792 + ... + 335017.

It is an arithmetic number, because the mean of its divisors is an integer number (3812427675).

Almost surely, 2^55993676917 is an apocalyptic number.

It is an amenable number.

55993676917 is a deficient number, since it is larger than the sum of its proper divisors (5005165883).

55993676917 is a wasteful number, since it uses less digits than its factorization.

55993676917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351096.

The product of its digits is 96446700, while the sum is 67.

The spelling of 55993676917 in words is "fifty-five billion, nine hundred ninety-three million, six hundred seventy-six thousand, nine hundred seventeen".