55697718967 has 24 divisors (see below), whose sum is σ = 64584661680. Its totient is φ = 47864361600.

The previous prime is 55697718907. The next prime is 55697719001. The reversal of 55697718967 is 76981779655.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-55697718967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55697718896 and 55697718905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55697718907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1033563 + ... + 1086115.

It is an arithmetic number, because the mean of its divisors is an integer number (2691027570).

Almost surely, 2^55697718967 is an apocalyptic number.

55697718967 is a deficient number, since it is larger than the sum of its proper divisors (8886942713).

55697718967 is a wasteful number, since it uses less digits than its factorization.

55697718967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53055 (or 53044 counting only the distinct ones).

The product of its digits is 200037600, while the sum is 70.

The spelling of 55697718967 in words is "fifty-five billion, six hundred ninety-seven million, seven hundred eighteen thousand, nine hundred sixty-seven".