23045550 has 48 divisors (see below), whose sum is σ = 62353152. Its totient is φ = 5586400.

The previous prime is 23045497. The next prime is 23045573. The reversal of 23045550 is 5554032.

It is a self number, because there is not a number n which added to its sum of digits gives 23045550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5334 + ... + 8633.

It is an arithmetic number, because the mean of its divisors is an integer number (1299024).

Almost surely, 2^23045550 is an apocalyptic number.

23045550 is an abundant number, since it is smaller than the sum of its proper divisors (39307602).

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

23045550 is a wasteful number, since it uses less digits than its factorization.

23045550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13993 (or 13988 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 23045550 is about 4800.5780901887. The cubic root of 23045550 is about 284.5743106242.

Adding to 23045550 its reverse (5554032), we get a palindrome (28599582).

The spelling of 23045550 in words is "twenty-three million, forty-five thousand, five hundred fifty".