23025921 has 16 divisors (see below), whose sum is σ = 32169984. Its totient is φ = 14621904.

The previous prime is 23025917. The next prime is 23025931. The reversal of 23025921 is 12952032.

It is not a de Polignac number, because 23025921 - 2² = 23025917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23025891 and 23025900.

It is not an unprimeable number, because it can be changed into a prime (23025931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20640 + ... + 21726.

It is an arithmetic number, because the mean of its divisors is an integer number (2010624).

Almost surely, 2^23025921 is an apocalyptic number.

It is an amenable number.

23025921 is a deficient number, since it is larger than the sum of its proper divisors (9144063).

23025921 is a wasteful number, since it uses less digits than its factorization.

23025921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 23025921 is about 4798.5332133893. The cubic root of 23025921 is about 284.4934924789.

Adding to 23025921 its reverse (12952032), we get a palindrome (35977953).

It can be divided in two parts, 23025 and 921, that multiplied together give a square (21206025 = 4605²).

The spelling of 23025921 in words is "twenty-three million, twenty-five thousand, nine hundred twenty-one".