23054821 has 4 divisors (see below), whose sum is σ = 23230944. Its totient is φ = 22878700.

The previous prime is 23054813. The next prime is 23054849. The reversal of 23054821 is 12845032.

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 23054821 - 2³ = 23054813 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 (23054861) 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, 87865 + ... + 88126.

It is an arithmetic number, because the mean of its divisors is an integer number (5807736).

Almost surely, 2^23054821 is an apocalyptic number.

It is an amenable number.

23054821 is a deficient number, since it is larger than the sum of its proper divisors (176123).

23054821 is a wasteful number, since it uses less digits than its factorization.

23054821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176122.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 23054821 is about 4801.5436059667. The cubic root of 23054821 is about 284.6124659981.

Adding to 23054821 its reverse (12845032), we get a palindrome (35899853).

The spelling of 23054821 in words is "twenty-three million, fifty-four thousand, eight hundred twenty-one".