55686705023 has 4 divisors (see below), whose sum is σ = 55898441808. Its totient is φ = 55474968240.

The previous prime is 55686705007. The next prime is 55686705029. The reversal of 55686705023 is 32050768655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32050768655 = 5 ⋅6410153731.

It is a cyclic number.

It is not a de Polignac number, because 55686705023 - 2⁴ = 55686705007 is a prime.

It is a super-2 number, since 2×55686705023² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55686705029) 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, 105867998 + ... + 105868523.

It is an arithmetic number, because the mean of its divisors is an integer number (13974610452).

Almost surely, 2^55686705023 is an apocalyptic number.

55686705023 is a deficient number, since it is larger than the sum of its proper divisors (211736785).

55686705023 is a wasteful number, since it uses less digits than its factorization.

55686705023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211736784.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 55686705023 in words is "fifty-five billion, six hundred eighty-six million, seven hundred five thousand, twenty-three".