55968173897 has 4 divisors (see below), whose sum is σ = 58913867280. Its totient is φ = 53022480516.

The previous prime is 55968173879. The next prime is 55968173983. The reversal of 55968173897 is 79837186955.

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 55968173897 - 2¹⁰ = 55968172873 is a prime.

It is a super-3 number, since 3×55968173897³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55968173827) 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, 1472846663 + ... + 1472846700.

It is an arithmetic number, because the mean of its divisors is an integer number (14728466820).

Almost surely, 2^55968173897 is an apocalyptic number.

It is an amenable number.

55968173897 is a deficient number, since it is larger than the sum of its proper divisors (2945693383).

55968173897 is a wasteful number, since it uses less digits than its factorization.

55968173897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945693382.

The product of its digits is 114307200, while the sum is 68.

The spelling of 55968173897 in words is "fifty-five billion, nine hundred sixty-eight million, one hundred seventy-three thousand, eight hundred ninety-seven".