5399521 has 4 divisors (see below), whose sum is σ = 5545492. Its totient is φ = 5253552.

The previous prime is 5399507. The next prime is 5399531. The reversal of 5399521 is 1259935.

It is a happy number.

5399521 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.

It can be written as a sum of positive squares in 2 ways, for example, as 5239521 + 160000 = 2289^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 5399521 - 2⁷ = 5399393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5399531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72930 + ... + 73003.

It is an arithmetic number, because the mean of its divisors is an integer number (1386373).

Almost surely, 2^5399521 is an apocalyptic number.

It is an amenable number.

5399521 is a deficient number, since it is larger than the sum of its proper divisors (145971).

5399521 is a wasteful number, since it uses less digits than its factorization.

5399521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145970.

The product of its digits is 12150, while the sum is 34.

The square root of 5399521 is about 2323.6869410486. The cubic root of 5399521 is about 175.4358767153.

The spelling of 5399521 in words is "five million, three hundred ninety-nine thousand, five hundred twenty-one".