23000550 has 24 divisors (see below), whose sum is σ = 57041736. Its totient is φ = 6133440.

The previous prime is 23000533. The next prime is 23000557. The reversal of 23000550 is 5500032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76519 + ... + 76818.

It is an arithmetic number, because the mean of its divisors is an integer number (2376739).

Almost surely, 2^23000550 is an apocalyptic number.

23000550 is an abundant number, since it is smaller than the sum of its proper divisors (34041186).

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

23000550 is a wasteful number, since it uses less digits than its factorization.

23000550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153352 (or 153347 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 23000550 is about 4795.8888644338. Note that the first 4 decimals coincide. The cubic root of 23000550 is about 284.3889648176.

Adding to 23000550 its reverse (5500032), we get a palindrome (28500582).

The spelling of 23000550 in words is "twenty-three million, five hundred fifty", and thus it is an aban number.