23325021 has 6 divisors (see below), whose sum is σ = 33691710. Its totient is φ = 15550008.

The previous prime is 23325011. The next prime is 23325047. The reversal of 23325021 is 12052332.

It can be written as a sum of positive squares in only one way, i.e., 20602521 + 2722500 = 4539^2 + 1650^2 .

It is not a de Polignac number, because 23325021 - 2⁷ = 23324893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23324985 and 23325003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23325011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1295826 + ... + 1295843.

It is an arithmetic number, because the mean of its divisors is an integer number (5615285).

Almost surely, 2^23325021 is an apocalyptic number.

It is an amenable number.

23325021 is a deficient number, since it is larger than the sum of its proper divisors (10366689).

23325021 is a wasteful number, since it uses less digits than its factorization.

23325021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591675 (or 2591672 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23325021 is about 4829.5984305116. The cubic root of 23325021 is about 285.7200261109.

Adding to 23325021 its reverse (12052332), we get a palindrome (35377353).

The spelling of 23325021 in words is "twenty-three million, three hundred twenty-five thousand, twenty-one".