5185221187 has 8 divisors (see below), whose sum is σ = 5572179216. Its totient is φ = 4807368192.

The previous prime is 5185221179. The next prime is 5185221191. The reversal of 5185221187 is 7811225815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5185221187 - 2³ = 5185221179 is a prime.

It is a super-2 number, since 2×5185221187² = 53773037516227377938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5185221127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2275078 + ... + 2277355.

It is an arithmetic number, because the mean of its divisors is an integer number (696522402).

Almost surely, 2^5185221187 is an apocalyptic number.

5185221187 is a deficient number, since it is larger than the sum of its proper divisors (386958029).

5185221187 is a wasteful number, since it uses less digits than its factorization.

5185221187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4552517.

The product of its digits is 44800, while the sum is 40.

The square root of 5185221187 is about 72008.4799659040. The cubic root of 5185221187 is about 1730.8353731147.

The spelling of 5185221187 in words is "five billion, one hundred eighty-five million, two hundred twenty-one thousand, one hundred eighty-seven".