23550012 has 18 divisors (see below), whose sum is σ = 59529288. Its totient is φ = 7849992.

The previous prime is 23549993. The next prime is 23550013. The reversal of 23550012 is 21005532.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23550013) 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 5 ways as a sum of consecutive naturals, for example, 327048 + ... + 327119.

Almost surely, 2^23550012 is an apocalyptic number.

It is an amenable number.

23550012 is an abundant number, since it is smaller than the sum of its proper divisors (35979276).

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

23550012 is a wasteful number, since it uses less digits than its factorization.

23550012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654177 (or 654172 counting only the distinct ones).

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

The square root of 23550012 is about 4852.8354598111. The cubic root of 23550012 is about 286.6357643511.

Adding to 23550012 its reverse (21005532), we get a palindrome (44555544).

The spelling of 23550012 in words is "twenty-three million, five hundred fifty thousand, twelve".