5105555101 has 4 divisors (see below), whose sum is σ = 5116727452. Its totient is φ = 5094382752.

The previous prime is 5105555089. The next prime is 5105555123. The reversal of 5105555101 is 1015555015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1015555015 = 5 ⋅203111003.

It can be written as a sum of positive squares in 2 ways, for example, as 3531449476 + 1574105625 = 59426^2 + 39675^2 .

It is a cyclic number.

It is not a de Polignac number, because 5105555101 - 2¹¹ = 5105553053 is a prime.

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 5105555101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5105555131) 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, 5585490 + ... + 5586403.

It is an arithmetic number, because the mean of its divisors is an integer number (1279181863).

Almost surely, 2^5105555101 is an apocalyptic number.

It is an amenable number.

5105555101 is a deficient number, since it is larger than the sum of its proper divisors (11172351).

5105555101 is a wasteful number, since it uses less digits than its factorization.

5105555101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11172350.

The product of its (nonzero) digits is 3125, while the sum is 28.

The square root of 5105555101 is about 71453.1671866265. The cubic root of 5105555101 is about 1721.9253611932.

The spelling of 5105555101 in words is "five billion, one hundred five million, five hundred fifty-five thousand, one hundred one".