55857718067 has 2 divisors, whose sum is σ = 55857718068. Its totient is φ = 55857718066.

The previous prime is 55857717983. The next prime is 55857718099. The reversal of 55857718067 is 76081775855.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55857718067 - 2²⁴ = 55840940851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55857717997 and 55857718015.

It is not a weakly prime, because it can be changed into another prime (55857718967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27928859033 + 27928859034.

It is an arithmetic number, because the mean of its divisors is an integer number (27928859034).

Almost surely, 2^55857718067 is an apocalyptic number.

55857718067 is a deficient number, since it is larger than the sum of its proper divisors (1).

55857718067 is an equidigital number, since it uses as much as digits as its factorization.

55857718067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16464000, while the sum is 59.

The spelling of 55857718067 in words is "fifty-five billion, eight hundred fifty-seven million, seven hundred eighteen thousand, sixty-seven".