5185217399 has 2 divisors, whose sum is σ = 5185217400. Its totient is φ = 5185217398.

The previous prime is 5185217383. The next prime is 5185217441. The reversal of 5185217399 is 9937125815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5185217399 - 2⁴ = 5185217383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5185217699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2592608699 + 2592608700.

It is an arithmetic number, because the mean of its divisors is an integer number (2592608700).

Almost surely, 2^5185217399 is an apocalyptic number.

5185217399 is a deficient number, since it is larger than the sum of its proper divisors (1).

5185217399 is an equidigital number, since it uses as much as digits as its factorization.

5185217399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 50.

The square root of 5185217399 is about 72008.4536634415. The cubic root of 5185217399 is about 1730.8349516344.

The spelling of 5185217399 in words is "five billion, one hundred eighty-five million, two hundred seventeen thousand, three hundred ninety-nine".