55971308769 has 16 divisors (see below), whose sum is σ = 75696175104. Its totient is φ = 36784098000.

The previous prime is 55971308747. The next prime is 55971308791. The reversal of 55971308769 is 96780317955.

It is an interprime number because it is at equal distance from previous prime (55971308747) and next prime (55971308791).

It is not a de Polignac number, because 55971308769 - 2⁷ = 55971308641 is a prime.

It is a super-2 number, since 2×55971308769² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55971308069) 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, 412249 + ... + 530934.

It is an arithmetic number, because the mean of its divisors is an integer number (4731010944).

Almost surely, 2^55971308769 is an apocalyptic number.

It is an amenable number.

55971308769 is a deficient number, since it is larger than the sum of its proper divisors (19724866335).

55971308769 is a wasteful number, since it uses less digits than its factorization.

55971308769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943468.

The product of its (nonzero) digits is 14288400, while the sum is 60.

The spelling of 55971308769 in words is "fifty-five billion, nine hundred seventy-one million, three hundred eight thousand, seven hundred sixty-nine".