55561222839 has 8 divisors (see below), whose sum is σ = 74083553280. Its totient is φ = 37039853816.

The previous prime is 55561222831. The next prime is 55561222919. The reversal of 55561222839 is 93822216555.

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

It is a cyclic number.

It is not a de Polignac number, because 55561222839 - 2³ = 55561222831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55561222831) 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, 92517 + ... + 345950.

It is an arithmetic number, because the mean of its divisors is an integer number (9260444160).

Almost surely, 2^55561222839 is an apocalyptic number.

55561222839 is a deficient number, since it is larger than the sum of its proper divisors (18522330441).

55561222839 is a wasteful number, since it uses less digits than its factorization.

55561222839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480709.

The product of its digits is 1296000, while the sum is 48.

The spelling of 55561222839 in words is "fifty-five billion, five hundred sixty-one million, two hundred twenty-two thousand, eight hundred thirty-nine".