55789324439 has 8 divisors (see below), whose sum is σ = 60185598480. Its totient is φ = 51516889216.

The previous prime is 55789324421. The next prime is 55789324447. The reversal of 55789324439 is 93442398755.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-55789324439 is a prime.

It is a super-2 number, since 2×55789324439² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55789324039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30958769 + ... + 30960570.

It is an arithmetic number, because the mean of its divisors is an integer number (7523199810).

Almost surely, 2^55789324439 is an apocalyptic number.

55789324439 is a deficient number, since it is larger than the sum of its proper divisors (4396274041).

55789324439 is a wasteful number, since it uses less digits than its factorization.

55789324439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61919409.

The product of its digits is 32659200, while the sum is 59.

The spelling of 55789324439 in words is "fifty-five billion, seven hundred eighty-nine million, three hundred twenty-four thousand, four hundred thirty-nine".