28554528 has 48 divisors (see below), whose sum is σ = 76991040. Its totient is φ = 9259776.

The previous prime is 28554497. The next prime is 28554551. The reversal of 28554528 is 82545582.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×28554528² = 1630722138605568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468 + ... + 7571.

It is an arithmetic number, because the mean of its divisors is an integer number (1603980).

Almost surely, 2^28554528 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 28554528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38495520).

28554528 is an abundant number, since it is smaller than the sum of its proper divisors (48436512).

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

28554528 is a wasteful number, since it uses less digits than its factorization.

28554528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8089 (or 8081 counting only the distinct ones).

The product of its digits is 128000, while the sum is 39.

The square root of 28554528 is about 5343.6437006971. The cubic root of 28554528 is about 305.6504188443.

The spelling of 28554528 in words is "twenty-eight million, five hundred fifty-four thousand, five hundred twenty-eight".