5111555605 has 8 divisors (see below), whose sum is σ = 6605702712. Its totient is φ = 3774687168.

The previous prime is 5111555599. The next prime is 5111555609. The reversal of 5111555605 is 5065551115.

5111555605 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 43112356 + 5068443249 = 6566^2 + 71193^2 .

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-5111555605 is a prime.

It is a super-2 number, since 2×5111555605² = 52256001406013832050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111555609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39319594 + ... + 39319723.

It is an arithmetic number, because the mean of its divisors is an integer number (825712839).

Almost surely, 2^5111555605 is an apocalyptic number.

It is an amenable number.

5111555605 is a deficient number, since it is larger than the sum of its proper divisors (1494147107).

5111555605 is a wasteful number, since it uses less digits than its factorization.

5111555605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78639335.

The product of its (nonzero) digits is 18750, while the sum is 34.

The square root of 5111555605 is about 71495.1439260038. The cubic root of 5111555605 is about 1722.5996838733.

The spelling of 5111555605 in words is "five billion, one hundred eleven million, five hundred fifty-five thousand, six hundred five".