5185732209 has 32 divisors (see below), whose sum is σ = 8021099520. Its totient is φ = 2918955072.

The previous prime is 5185732177. The next prime is 5185732243. The reversal of 5185732209 is 9022375815.

It is a happy number.

It is not a de Polignac number, because 5185732209 - 2⁵ = 5185732177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5185732249) 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, 395767 + ... + 408659.

It is an arithmetic number, because the mean of its divisors is an integer number (250659360).

Almost surely, 2^5185732209 is an apocalyptic number.

It is an amenable number.

5185732209 is a deficient number, since it is larger than the sum of its proper divisors (2835367311).

5185732209 is a wasteful number, since it uses less digits than its factorization.

5185732209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13189.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 5185732209 is about 72012.0282244571. The cubic root of 5185732209 is about 1730.8922312420.

The spelling of 5185732209 in words is "five billion, one hundred eighty-five million, seven hundred thirty-two thousand, two hundred nine".