5509779055 has 16 divisors (see below), whose sum is σ = 7388726688. Its totient is φ = 3909376000.

The previous prime is 5509779047. The next prime is 5509779097.

5509779055 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5509779055 - 2³ = 5509779047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5509778993 and 5509779011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219426 + ... + 1223935.

It is an arithmetic number, because the mean of its divisors is an integer number (461795418).

Almost surely, 2^5509779055 is an apocalyptic number.

5509779055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5509779055 is a deficient number, since it is larger than the sum of its proper divisors (1878947633).

5509779055 is a wasteful number, since it uses less digits than its factorization.

5509779055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443418.

The product of its (nonzero) digits is 2480625, while the sum is 52.

The square root of 5509779055 is about 74227.8859661246. The cubic root of 5509779055 is about 1766.2197140176.

The spelling of 5509779055 in words is "five billion, five hundred nine million, seven hundred seventy-nine thousand, fifty-five".