5199949 has 4 divisors (see below), whose sum is σ = 5228860. Its totient is φ = 5171040.

The previous prime is 5199917. The next prime is 5199959. The reversal of 5199949 is 9499915.

5199949 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9499915 = 5 ⋅1899983.

It can be written as a sum of positive squares in 2 ways, for example, as 714025 + 4485924 = 845^2 + 2118^2 .

It is a cyclic number.

It is not a de Polignac number, because 5199949 - 2⁵ = 5199917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5199899 and 5199908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5199959) 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, 14184 + ... + 14545.

It is an arithmetic number, because the mean of its divisors is an integer number (1307215).

Almost surely, 2^5199949 is an apocalyptic number.

It is an amenable number.

5199949 is a deficient number, since it is larger than the sum of its proper divisors (28911).

5199949 is a wasteful number, since it uses less digits than its factorization.

5199949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28910.

The product of its digits is 131220, while the sum is 46.

The square root of 5199949 is about 2280.3396676811. The cubic root of 5199949 is about 173.2472546792.

It can be divided in two parts, 51 and 99949, that added together give a 5-th power (100000 = 10⁵).

The spelling of 5199949 in words is "five million, one hundred ninety-nine thousand, nine hundred forty-nine".