23372251 has 4 divisors (see below), whose sum is σ = 26711152. Its totient is φ = 20033352.

The previous prime is 23372249. The next prime is 23372257. The reversal of 23372251 is 15227332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23372251 - 2¹ = 23372249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23372257) 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 3 ways as a sum of consecutive naturals, for example, 1669440 + ... + 1669453.

It is an arithmetic number, because the mean of its divisors is an integer number (6677788).

Almost surely, 2^23372251 is an apocalyptic number.

23372251 is a deficient number, since it is larger than the sum of its proper divisors (3338901).

23372251 is an equidigital number, since it uses as much as digits as its factorization.

23372251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338900.

The product of its digits is 2520, while the sum is 25.

The square root of 23372251 is about 4834.4855982824. The cubic root of 23372251 is about 285.9127441774.

Adding to 23372251 its reverse (15227332), we get a palindrome (38599583).

The spelling of 23372251 in words is "twenty-three million, three hundred seventy-two thousand, two hundred fifty-one".