28552524 has 96 divisors (see below), whose sum is σ = 89488896. Its totient is φ = 6842880.

The previous prime is 28552487. The next prime is 28552541. The reversal of 28552524 is 42525582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10824 + ... + 13200.

It is an arithmetic number, because the mean of its divisors is an integer number (932176).

Almost surely, 2^28552524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28552524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44744448).

28552524 is an abundant number, since it is smaller than the sum of its proper divisors (60936372).

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

28552524 is a wasteful number, since it uses less digits than its factorization.

28552524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415 (or 2413 counting only the distinct ones).

The product of its digits is 32000, while the sum is 33.

The square root of 28552524 is about 5343.4561849050. The cubic root of 28552524 is about 305.6432683406.

The spelling of 28552524 in words is "twenty-eight million, five hundred fifty-two thousand, five hundred twenty-four".