23550000 has 120 divisors (see below), whose sum is σ = 76526352. Its totient is φ = 6240000.

The previous prime is 23549993. The next prime is 23550013. The reversal of 23550000 is 5532.

It is a tau number, because it is divible by the number of its divisors (120).

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

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 23 ways as a sum of consecutive naturals, for example, 149922 + ... + 150078.

Almost surely, 2^23550000 is an apocalyptic number.

23550000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38263176).

23550000 is an abundant number, since it is smaller than the sum of its proper divisors (52976352).

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

23550000 is an equidigital number, since it uses as much as digits as its factorization.

23550000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 167 counting only the distinct ones).

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

The square root of 23550000 is about 4852.8342234204. The cubic root of 23550000 is about 286.6357156657.

Adding to 23550000 its reverse (5532), we get a palindrome (23555532).

The spelling of 23550000 in words is "twenty-three million, five hundred fifty thousand".