5299991 has 4 divisors (see below), whose sum is σ = 5443272. Its totient is φ = 5156712.

The previous prime is 5299979. The next prime is 5299997. The reversal of 5299991 is 1999925.

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 5299991 - 2⁶ = 5299927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5299997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71585 + ... + 71658.

It is an arithmetic number, because the mean of its divisors is an integer number (1360818).

Almost surely, 2^5299991 is an apocalyptic number.

5299991 is a deficient number, since it is larger than the sum of its proper divisors (143281).

5299991 is a wasteful number, since it uses less digits than its factorization.

5299991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143280.

The product of its digits is 65610, while the sum is 44.

The square root of 5299991 is about 2302.1709319683. The cubic root of 5299991 is about 174.3512414370.

Adding to 5299991 its sum of digits (44), we get a palindrome (5300035).

The spelling of 5299991 in words is "five million, two hundred ninety-nine thousand, nine hundred ninety-one".