55958371717 has 4 divisors (see below), whose sum is σ = 56075195520. Its totient is φ = 55841547916.

The previous prime is 55958371687. The next prime is 55958371723. The reversal of 55958371717 is 71717385955.

55958371717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55958371717 - 2³⁵ = 21598633349 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 (55958371727) 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, 58411183 + ... + 58412140.

It is an arithmetic number, because the mean of its divisors is an integer number (14018798880).

Almost surely, 2^55958371717 is an apocalyptic number.

It is an amenable number.

55958371717 is a deficient number, since it is larger than the sum of its proper divisors (116823803).

55958371717 is a wasteful number, since it uses less digits than its factorization.

55958371717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116823802.

The product of its digits is 9261000, while the sum is 58.

The spelling of 55958371717 in words is "fifty-five billion, nine hundred fifty-eight million, three hundred seventy-one thousand, seven hundred seventeen".