5199172581 has 8 divisors (see below), whose sum is σ = 6933004960. Its totient is φ = 3465727632.

The previous prime is 5199172523. The next prime is 5199172621. The reversal of 5199172581 is 1852719915.

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

It is not a de Polignac number, because 5199172581 - 2¹¹ = 5199170533 is a prime.

It is a super-2 number, since 2×5199172581² = 54062791054044403122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5199172581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5199172081) 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, 63946 + ... + 120363.

It is an arithmetic number, because the mean of its divisors is an integer number (866625620).

Almost surely, 2^5199172581 is an apocalyptic number.

It is an amenable number.

5199172581 is a deficient number, since it is larger than the sum of its proper divisors (1733832379).

5199172581 is a wasteful number, since it uses less digits than its factorization.

5199172581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193715.

The product of its digits is 226800, while the sum is 48.

The square root of 5199172581 is about 72105.2881625197. The cubic root of 5199172581 is about 1732.3863157185.

The spelling of 5199172581 in words is "five billion, one hundred ninety-nine million, one hundred seventy-two thousand, five hundred eighty-one".