5523421 has 4 divisors (see below), whose sum is σ = 5532192. Its totient is φ = 5514652.

The previous prime is 5523409. The next prime is 5523437. The reversal of 5523421 is 1243255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5523421 - 2⁷ = 5523293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5523392 and 5523401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5523481) 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, 3361 + ... + 4726.

It is an arithmetic number, because the mean of its divisors is an integer number (1383048).

Almost surely, 2^5523421 is an apocalyptic number.

It is an amenable number.

5523421 is a deficient number, since it is larger than the sum of its proper divisors (8771).

5523421 is an equidigital number, since it uses as much as digits as its factorization.

5523421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770.

The product of its digits is 1200, while the sum is 22.

The square root of 5523421 is about 2350.1959492774. The cubic root of 5523421 is about 176.7676203986.

Adding to 5523421 its reverse (1243255), we get a palindrome (6766676).

It can be divided in two parts, 55234 and 21, that added together give a palindrome (55255).

The spelling of 5523421 in words is "five million, five hundred twenty-three thousand, four hundred twenty-one".