55165781833 has 8 divisors (see below), whose sum is σ = 56606544000. Its totient is φ = 53736145680.

The previous prime is 55165781719. The next prime is 55165781843. The reversal of 55165781833 is 33818756155.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55165781833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55165781843) 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, 2771458 + ... + 2791291.

It is an arithmetic number, because the mean of its divisors is an integer number (7075818000).

Almost surely, 2^55165781833 is an apocalyptic number.

It is an amenable number.

55165781833 is a deficient number, since it is larger than the sum of its proper divisors (1440762167).

55165781833 is a wasteful number, since it uses less digits than its factorization.

55165781833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5563007.

The product of its digits is 3024000, while the sum is 52.

The spelling of 55165781833 in words is "fifty-five billion, one hundred sixty-five million, seven hundred eighty-one thousand, eight hundred thirty-three".