23642025 has 24 divisors (see below), whose sum is σ = 42643104. Its totient is φ = 11462400.

The previous prime is 23642011. The next prime is 23642029. The reversal of 23642025 is 52024632.

It is not a de Polignac number, because 23642025 - 2⁵ = 23641993 is a prime.

It is a super-2 number, since 2×23642025² = 1117890692201250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23641986 and 23642004.

It is not an unprimeable number, because it can be changed into a prime (23642029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13504 + ... + 15153.

It is an arithmetic number, because the mean of its divisors is an integer number (1776796).

Almost surely, 2^23642025 is an apocalyptic number.

23642025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23642025 is a deficient number, since it is larger than the sum of its proper divisors (19001079).

23642025 is a wasteful number, since it uses less digits than its factorization.

23642025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28681 (or 28676 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 23642025 is about 4862.3065514219. The cubic root of 23642025 is about 287.0085871161.

Adding to 23642025 its reverse (52024632), we get a palindrome (75666657).

The spelling of 23642025 in words is "twenty-three million, six hundred forty-two thousand, twenty-five".