5229991 has 4 divisors (see below), whose sum is σ = 5632312. Its totient is φ = 4827672.

The previous prime is 5229989. The next prime is 5230003. The reversal of 5229991 is 1999225.

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 5229991 - 2¹ = 5229989 is a prime.

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 5229991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5229911) 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, 201141 + ... + 201166.

It is an arithmetic number, because the mean of its divisors is an integer number (1408078).

Almost surely, 2^5229991 is an apocalyptic number.

5229991 is a deficient number, since it is larger than the sum of its proper divisors (402321).

5229991 is a wasteful number, since it uses less digits than its factorization.

5229991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402320.

The product of its digits is 14580, while the sum is 37.

The square root of 5229991 is about 2286.9173574924. The cubic root of 5229991 is about 173.5802517230.

The spelling of 5229991 in words is "five million, two hundred twenty-nine thousand, nine hundred ninety-one".