5172097999 has 4 divisors (see below), whose sum is σ = 5172631840. Its totient is φ = 5171564160.

The previous prime is 5172097993. The next prime is 5172098023. The reversal of 5172097999 is 9997902715.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5172097999 - 2¹⁵ = 5172065231 is a prime.

It is a super-2 number, since 2×5172097999² = 53501195422519608002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172097993) 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, 252114 + ... + 271855.

It is an arithmetic number, because the mean of its divisors is an integer number (1293157960).

Almost surely, 2^5172097999 is an apocalyptic number.

5172097999 is a deficient number, since it is larger than the sum of its proper divisors (533841).

5172097999 is an equidigital number, since it uses as much as digits as its factorization.

5172097999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533840.

The product of its (nonzero) digits is 3214890, while the sum is 58.

The square root of 5172097999 is about 71917.2997198866. The cubic root of 5172097999 is about 1729.3739589408.

The spelling of 5172097999 in words is "five billion, one hundred seventy-two million, ninety-seven thousand, nine hundred ninety-nine".