55216376783 has 4 divisors (see below), whose sum is σ = 55224032760. Its totient is φ = 55208720808.

The previous prime is 55216376773. The next prime is 55216376801. The reversal of 55216376783 is 38767361255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55216376783 - 2¹⁰ = 55216375759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55216376723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3817160 + ... + 3831597.

It is an arithmetic number, because the mean of its divisors is an integer number (13806008190).

Almost surely, 2^55216376783 is an apocalyptic number.

55216376783 is a deficient number, since it is larger than the sum of its proper divisors (7655977).

55216376783 is an equidigital number, since it uses as much as digits as its factorization.

55216376783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7655976.

The product of its digits is 6350400, while the sum is 53.

The spelling of 55216376783 in words is "fifty-five billion, two hundred sixteen million, three hundred seventy-six thousand, seven hundred eighty-three".