5205671081 has 32 divisors (see below), whose sum is σ = 5869398528. Its totient is φ = 4585351680.

The previous prime is 5205671039. The next prime is 5205671083. The reversal of 5205671081 is 1801765025.

It is not a de Polignac number, because 5205671081 - 2³⁰ = 4131929257 is a prime.

It is a super-2 number, since 2×5205671081² = 54198022807119417122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5205671083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10689020 + ... + 10689506.

It is an arithmetic number, because the mean of its divisors is an integer number (183418704).

Almost surely, 2^5205671081 is an apocalyptic number.

It is an amenable number.

5205671081 is a deficient number, since it is larger than the sum of its proper divisors (663727447).

5205671081 is a wasteful number, since it uses less digits than its factorization.

5205671081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921.

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 5205671081 is about 72150.3366658812. The cubic root of 5205671081 is about 1733.1077911130.

The spelling of 5205671081 in words is "five billion, two hundred five million, six hundred seventy-one thousand, eighty-one".