23105250 has 160 divisors (see below), whose sum is σ = 74295936. Its totient is φ = 5248800.

The previous prime is 23105249. The next prime is 23105267. The reversal of 23105250 is 5250132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 141669 + ... + 141831.

Almost surely, 2^23105250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23105250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37147968).

23105250 is an abundant number, since it is smaller than the sum of its proper divisors (51190686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23105250 is a wasteful number, since it uses less digits than its factorization.

23105250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 23105250 is about 4806.7920695616. The cubic root of 23105250 is about 284.8198307242.

Adding to 23105250 its reverse (5250132), we get a palindrome (28355382).

The spelling of 23105250 in words is "twenty-three million, one hundred five thousand, two hundred fifty".