55899643759 has 4 divisors (see below), whose sum is σ = 55908909304. Its totient is φ = 55890378216.

The previous prime is 55899643753. The next prime is 55899643801. The reversal of 55899643759 is 95734699855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95734699855 = 5 ⋅19146939971.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55899643759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55899643753) 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, 4623717 + ... + 4635790.

It is an arithmetic number, because the mean of its divisors is an integer number (13977227326).

Almost surely, 2^55899643759 is an apocalyptic number.

55899643759 is a deficient number, since it is larger than the sum of its proper divisors (9265545).

55899643759 is an equidigital number, since it uses as much as digits as its factorization.

55899643759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9265544.

The product of its digits is 367416000, while the sum is 70.

The spelling of 55899643759 in words is "fifty-five billion, eight hundred ninety-nine million, six hundred forty-three thousand, seven hundred fifty-nine".