23325550 has 24 divisors (see below), whose sum is σ = 43524000. Its totient is φ = 9300480.

The previous prime is 23325539. The next prime is 23325551. The reversal of 23325550 is 5552332.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23325551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21931 + ... + 22969.

It is an arithmetic number, because the mean of its divisors is an integer number (1813500).

Almost surely, 2^23325550 is an apocalyptic number.

23325550 is a deficient number, since it is larger than the sum of its proper divisors (20198450).

23325550 is a wasteful number, since it uses less digits than its factorization.

23325550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 23325550 is about 4829.6531966592. The cubic root of 23325550 is about 285.7221860911.

Adding to 23325550 its reverse (5552332), we get a palindrome (28877882).

The spelling of 23325550 in words is "twenty-three million, three hundred twenty-five thousand, five hundred fifty".