55243325731765 has 4 divisors (see below), whose sum is σ = 66291990878124. Its totient is φ = 44194660585408.

The previous prime is 55243325731729. The next prime is 55243325731859. The reversal of 55243325731765 is 56713752334255.

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 41434981874001 + 13808343857764 = 6437001^2 + 3715958^2 .

It is a cyclic number.

It is not a de Polignac number, because 55243325731765 - 2⁷ = 55243325731637 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5524332573172 + ... + 5524332573181.

It is an arithmetic number, because the mean of its divisors is an integer number (16572997719531).

Almost surely, 2^{55243325731765} is an apocalyptic number.

It is an amenable number.

55243325731765 is a deficient number, since it is larger than the sum of its proper divisors (11048665146359).

55243325731765 is a wasteful number, since it uses less digits than its factorization.

55243325731765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11048665146358.

The product of its digits is 79380000, while the sum is 58.

The spelling of 55243325731765 in words is "fifty-five trillion, two hundred forty-three billion, three hundred twenty-five million, seven hundred thirty-one thousand, seven hundred sixty-five".