23528550 has 48 divisors (see below), whose sum is σ = 58692672. Its totient is φ = 6237600.

The previous prime is 23528539. The next prime is 23528569. The reversal of 23528550 is 5582532.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 33705 + ... + 34395.

It is an arithmetic number, because the mean of its divisors is an integer number (1222764).

Almost surely, 2^23528550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23528550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29346336).

23528550 is an abundant number, since it is smaller than the sum of its proper divisors (35164122).

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

23528550 is a wasteful number, since it uses less digits than its factorization.

23528550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 23528550 is about 4850.6236712406. The cubic root of 23528550 is about 286.5486639496.

The spelling of 23528550 in words is "twenty-three million, five hundred twenty-eight thousand, five hundred fifty".