55386668369 has 4 divisors (see below), whose sum is σ = 56325425520. Its totient is φ = 54447911220.

The previous prime is 55386668341. The next prime is 55386668377. The reversal of 55386668369 is 96386668355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55386668369 is a prime.

It is a super-2 number, since 2×55386668369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55386668329) 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, 469378487 + ... + 469378604.

It is an arithmetic number, because the mean of its divisors is an integer number (14081356380).

Almost surely, 2^55386668369 is an apocalyptic number.

55386668369 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

55386668369 is a deficient number, since it is larger than the sum of its proper divisors (938757151).

55386668369 is an equidigital number, since it uses as much as digits as its factorization.

55386668369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938757150.

The product of its digits is 167961600, while the sum is 65.

The spelling of 55386668369 in words is "fifty-five billion, three hundred eighty-six million, six hundred sixty-eight thousand, three hundred sixty-nine".