5111105605 has 4 divisors (see below), whose sum is σ = 6133326732. Its totient is φ = 4088884480.

The previous prime is 5111105591. The next prime is 5111105611. The reversal of 5111105605 is 5065011115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5065011115 = 5 ⋅1013002223.

It can be written as a sum of positive squares in 2 ways, for example, as 2500100001 + 2611005604 = 50001^2 + 51098^2 .

It is not a de Polignac number, because 5111105605 - 2⁹ = 5111105093 is a prime.

It is a super-2 number, since 2×5111105605² = 52246801010924832050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5111105605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511110556 + ... + 511110565.

It is an arithmetic number, because the mean of its divisors is an integer number (1533331683).

Almost surely, 2^5111105605 is an apocalyptic number.

It is an amenable number.

5111105605 is a deficient number, since it is larger than the sum of its proper divisors (1022221127).

5111105605 is a wasteful number, since it uses less digits than its factorization.

5111105605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022221126.

The product of its (nonzero) digits is 750, while the sum is 25.

The square root of 5111105605 is about 71491.9967898505. The cubic root of 5111105605 is about 1722.5491322300.

The spelling of 5111105605 in words is "five billion, one hundred eleven million, one hundred five thousand, six hundred five".