5023021 has 4 divisors (see below), whose sum is σ = 5027932. Its totient is φ = 5018112.

The previous prime is 5023019. The next prime is 5023069. The reversal of 5023021 is 1203205.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1203205 = 5 ⋅240641.

It can be written as a sum of positive squares in 2 ways, for example, as 2418025 + 2604996 = 1555^2 + 1614^2 .

It is a cyclic number.

It is not a de Polignac number, because 5023021 - 2¹ = 5023019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5022992 and 5023010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5023091) 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, 276 + ... + 3181.

It is an arithmetic number, because the mean of its divisors is an integer number (1256983).

Almost surely, 2^5023021 is an apocalyptic number.

It is an amenable number.

5023021 is a deficient number, since it is larger than the sum of its proper divisors (4911).

5023021 is a wasteful number, since it uses less digits than its factorization.

5023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 5023021 is about 2241.2097179871. The cubic root of 5023021 is about 171.2596286344.

Adding to 5023021 its reverse (1203205), we get a palindrome (6226226).

The spelling of 5023021 in words is "five million, twenty-three thousand, twenty-one".