5105039081 has 4 divisors (see below), whose sum is σ = 5150216532. Its totient is φ = 5059861632.

The previous prime is 5105039053. The next prime is 5105039141. The reversal of 5105039081 is 1809305015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 576960400 + 4528078681 = 24020^2 + 67291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5105039081 is a prime.

It is a super-2 number, since 2×5105039081² = 52122848037074649122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5105039011) 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, 22588556 + ... + 22588781.

It is an arithmetic number, because the mean of its divisors is an integer number (1287554133).

Almost surely, 2^5105039081 is an apocalyptic number.

It is an amenable number.

5105039081 is a deficient number, since it is larger than the sum of its proper divisors (45177451).

5105039081 is a wasteful number, since it uses less digits than its factorization.

5105039081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45177450.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 5105039081 is about 71449.5561987617. The cubic root of 5105039081 is about 1721.8673473994.

The spelling of 5105039081 in words is "five billion, one hundred five million, thirty-nine thousand, eighty-one".