5091089 has 4 divisors (see below), whose sum is σ = 5228724. Its totient is φ = 4953456.

The previous prime is 5091061. The next prime is 5091091. The reversal of 5091089 is 9801905.

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 3610000 + 1481089 = 1900^2 + 1217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5091089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5091019) 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, 68762 + ... + 68835.

It is an arithmetic number, because the mean of its divisors is an integer number (1307181).

Almost surely, 2^5091089 is an apocalyptic number.

It is an amenable number.

5091089 is a deficient number, since it is larger than the sum of its proper divisors (137635).

5091089 is a wasteful number, since it uses less digits than its factorization.

5091089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137634.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 5091089 is about 2256.3441670100. The cubic root of 5091089 is about 172.0297519292.

The spelling of 5091089 in words is "five million, ninety-one thousand, eighty-nine".