23750221 has 8 divisors (see below), whose sum is σ = 25977600. Its totient is φ = 21534240.

The previous prime is 23750203. The next prime is 23750231. The reversal of 23750221 is 12205732.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23750221 - 2⁹ = 23749709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23750192 and 23750201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23750231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1860 + ... + 7138.

It is an arithmetic number, because the mean of its divisors is an integer number (3247200).

Almost surely, 2^23750221 is an apocalyptic number.

It is an amenable number.

23750221 is a deficient number, since it is larger than the sum of its proper divisors (2227379).

23750221 is a wasteful number, since it uses less digits than its factorization.

23750221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 23750221 is about 4873.4198464733. The cubic root of 23750221 is about 287.4457455278.

Adding to 23750221 its reverse (12205732), we get a palindrome (35955953).

The spelling of 23750221 in words is "twenty-three million, seven hundred fifty thousand, two hundred twenty-one".