23250021 has 8 divisors (see below), whose sum is σ = 31137504. Its totient is φ = 15431280.

The previous prime is 23250001. The next prime is 23250037. The reversal of 23250021 is 12005232.

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

It is not a de Polignac number, because 23250021 - 2⁶ = 23249957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23250001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16390 + ... + 17751.

It is an arithmetic number, because the mean of its divisors is an integer number (3892188).

Almost surely, 2^23250021 is an apocalyptic number.

It is an amenable number.

23250021 is a deficient number, since it is larger than the sum of its proper divisors (7887483).

23250021 is a wasteful number, since it uses less digits than its factorization.

23250021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34371.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 23250021 is about 4821.8275580945. The cubic root of 23250021 is about 285.4134596001.

Adding to 23250021 its reverse (12005232), we get a palindrome (35255253).

The spelling of 23250021 in words is "twenty-three million, two hundred fifty thousand, twenty-one".