5249871349 has 4 divisors (see below), whose sum is σ = 5269243840. Its totient is φ = 5230498860.

The previous prime is 5249871331. The next prime is 5249871353. The reversal of 5249871349 is 9431789425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5249871349 - 2⁵ = 5249871317 is a prime.

It is a super-2 number, since 2×5249871349² = 55122298362102159602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5249871296 and 5249871305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243871349) 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, 9685839 + ... + 9686380.

It is an arithmetic number, because the mean of its divisors is an integer number (1317310960).

Almost surely, 2^5249871349 is an apocalyptic number.

It is an amenable number.

5249871349 is a deficient number, since it is larger than the sum of its proper divisors (19372491).

5249871349 is a wasteful number, since it uses less digits than its factorization.

5249871349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19372490.

The product of its digits is 2177280, while the sum is 52.

The square root of 5249871349 is about 72455.9959492656. The cubic root of 5249871349 is about 1737.9991256827. Note that the first 3 decimals are identical.

The spelling of 5249871349 in words is "five billion, two hundred forty-nine million, eight hundred seventy-one thousand, three hundred forty-nine".