55305527777 has 4 divisors (see below), whose sum is σ = 55321764096. Its totient is φ = 55289291460.

The previous prime is 55305527759. The next prime is 55305527803. The reversal of 55305527777 is 77772550355.

55305527777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55305527777 - 2⁸ = 55305527521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55305527747) 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, 8113049 + ... + 8119862.

It is an arithmetic number, because the mean of its divisors is an integer number (13830441024).

Almost surely, 2^55305527777 is an apocalyptic number.

It is an amenable number.

55305527777 is a deficient number, since it is larger than the sum of its proper divisors (16236319).

55305527777 is a wasteful number, since it uses less digits than its factorization.

55305527777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16236318.

The product of its (nonzero) digits is 9003750, while the sum is 53.

The spelling of 55305527777 in words is "fifty-five billion, three hundred five million, five hundred twenty-seven thousand, seven hundred seventy-seven".