5221999 has 4 divisors (see below), whose sum is σ = 5226664. Its totient is φ = 5217336.

The previous prime is 5221987. The next prime is 5222011. The reversal of 5221999 is 9991225.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (5221987) and next prime (5222011).

It is a cyclic number.

It is not a de Polignac number, because 5221999 - 2¹⁷ = 5090927 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 (5221939) 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, 469 + ... + 3265.

It is an arithmetic number, because the mean of its divisors is an integer number (1306666).

Almost surely, 2^5221999 is an apocalyptic number.

5221999 is a deficient number, since it is larger than the sum of its proper divisors (4665).

5221999 is a wasteful number, since it uses less digits than its factorization.

5221999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664.

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

The square root of 5221999 is about 2285.1693591504. The cubic root of 5221999 is about 173.4917900923.

The spelling of 5221999 in words is "five million, two hundred twenty-one thousand, nine hundred ninety-nine".