23550540 has 96 divisors (see below), whose sum is σ = 71924160. Its totient is φ = 5723136.

The previous prime is 23550539. The next prime is 23550563. The reversal of 23550540 is 4505532.

It is a self number, because there is not a number n which added to its sum of digits gives 23550540.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 84882 + ... + 85158.

It is an arithmetic number, because the mean of its divisors is an integer number (749210).

Almost surely, 2^23550540 is an apocalyptic number.

23550540 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 23550540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35962080).

23550540 is an abundant number, since it is smaller than the sum of its proper divisors (48373620).

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

23550540 is a wasteful number, since it uses less digits than its factorization.

23550540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 409 counting only the distinct ones).

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

The square root of 23550540 is about 4852.8898606913. The cubic root of 23550540 is about 286.6379064951.

It can be divided in two parts, 23550 and 540, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 23550540 in words is "twenty-three million, five hundred fifty thousand, five hundred forty".