55933816607857 has 4 divisors (see below), whose sum is σ = 55933879095796. Its totient is φ = 55933754119920.

The previous prime is 55933816607827. The next prime is 55933816607869. The reversal of 55933816607857 is 75870661833955.

55933816607857 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.

It can be written as a sum of positive squares in 2 ways, for example, as 16061146308496 + 39872670299361 = 4007636^2 + 6314481^2 .

It is a cyclic number.

It is not a de Polignac number, because 55933816607857 - 2²⁷ = 55933682390129 is a prime.

It is a super-2 number, since 2×55933816607857² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55933816607857.

It is not an unprimeable number, because it can be changed into a prime (55933816607827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29881494 + ... + 31698127.

It is an arithmetic number, because the mean of its divisors is an integer number (13983469773949).

Almost surely, 2^{55933816607857} is an apocalyptic number.

It is an amenable number.

55933816607857 is a deficient number, since it is larger than the sum of its proper divisors (62487939).

55933816607857 is an equidigital number, since it uses as much as digits as its factorization.

55933816607857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62487938.

The product of its (nonzero) digits is 1143072000, while the sum is 73.

The spelling of 55933816607857 in words is "fifty-five trillion, nine hundred thirty-three billion, eight hundred sixteen million, six hundred seven thousand, eight hundred fifty-seven".