5023521 has 12 divisors (see below), whose sum is σ = 7291648. Its totient is φ = 3332664.

The previous prime is 5023511. The next prime is 5023537. The reversal of 5023521 is 1253205.

It is a happy number.

It is not a de Polignac number, because 5023521 - 2⁵ = 5023489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5023494 and 5023503.

It is not an unprimeable number, because it can be changed into a prime (5023511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 756 + ... + 3258.

Almost surely, 2^5023521 is an apocalyptic number.

It is an amenable number.

5023521 is a deficient number, since it is larger than the sum of its proper divisors (2268127).

5023521 is a wasteful number, since it uses less digits than its factorization.

5023521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732 (or 2729 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 5023521 is about 2241.3212621130. The cubic root of 5023521 is about 171.2653109368.

Adding to 5023521 its reverse (1253205), we get a palindrome (6276726).

The spelling of 5023521 in words is "five million, twenty-three thousand, five hundred twenty-one".