55439365593 has 8 divisors (see below), whose sum is σ = 77809636000. Its totient is φ = 35014336128.

The previous prime is 55439365573. The next prime is 55439365661. The reversal of 55439365593 is 39556393455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55439365593 - 2⁹ = 55439365081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 972620449 = 55439365593 / (5 + 5 + 4 + 3 + 9 + 3 + 6 + 5 + 5 + 9 + 3).

It is not an unprimeable number, because it can be changed into a prime (55439365523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486310168 + ... + 486310281.

It is an arithmetic number, because the mean of its divisors is an integer number (9726204500).

Almost surely, 2^55439365593 is an apocalyptic number.

It is an amenable number.

55439365593 is a deficient number, since it is larger than the sum of its proper divisors (22370270407).

55439365593 is a wasteful number, since it uses less digits than its factorization.

55439365593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972620471.

The product of its digits is 32805000, while the sum is 57.

The spelling of 55439365593 in words is "fifty-five billion, four hundred thirty-nine million, three hundred sixty-five thousand, five hundred ninety-three".