2806138533 has 32 divisors (see below), whose sum is σ = 4144250880. Its totient is φ = 1674812160.

The previous prime is 2806138501. The next prime is 2806138561. The reversal of 2806138533 is 3358316082.

It is not a de Polignac number, because 2806138533 - 2⁵ = 2806138501 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2806138491 and 2806138500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2806138733) 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, 580141 + ... + 584957.

It is an arithmetic number, because the mean of its divisors is an integer number (129507840).

Almost surely, 2^2806138533 is an apocalyptic number.

It is an amenable number.

2806138533 is a deficient number, since it is larger than the sum of its proper divisors (1338112347).

2806138533 is a wasteful number, since it uses less digits than its factorization.

2806138533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5097.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2806138533 is about 52972.9981500009. The cubic root of 2806138533 is about 1410.4889964314.

The spelling of 2806138533 in words is "two billion, eight hundred six million, one hundred thirty-eight thousand, five hundred thirty-three".