5190805209 has 16 divisors (see below), whose sum is σ = 7223675904. Its totient is φ = 3309306000.

The previous prime is 5190805189. The next prime is 5190805223. The reversal of 5190805209 is 9025080915.

It is not a de Polignac number, because 5190805209 - 2¹² = 5190801113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5190805229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506284 + ... + 516434.

It is an arithmetic number, because the mean of its divisors is an integer number (451479744).

Almost surely, 2^5190805209 is an apocalyptic number.

It is an amenable number.

5190805209 is a deficient number, since it is larger than the sum of its proper divisors (2032870695).

5190805209 is a wasteful number, since it uses less digits than its factorization.

5190805209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17588.

The product of its (nonzero) digits is 32400, while the sum is 39.

The square root of 5190805209 is about 72047.2428965883. The cubic root of 5190805209 is about 1731.4564687935.

The spelling of 5190805209 in words is "five billion, one hundred ninety million, eight hundred five thousand, two hundred nine".