28526548 has 12 divisors (see below), whose sum is σ = 49963060. Its totient is φ = 14251392.

The previous prime is 28526503. The next prime is 28526549. The reversal of 28526548 is 84562582.

It can be written as a sum of positive squares in 2 ways, for example, as 11370384 + 17156164 = 3372^2 + 4142^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28526548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28526549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4540 + ... + 8812.

Almost surely, 2^28526548 is an apocalyptic number.

It is an amenable number.

28526548 is a deficient number, since it is larger than the sum of its proper divisors (21436512).

28526548 is a wasteful number, since it uses less digits than its factorization.

28526548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5946 (or 5944 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

The square root of 28526548 is about 5341.0249952607. The cubic root of 28526548 is about 305.5505526796.

The spelling of 28526548 in words is "twenty-eight million, five hundred twenty-six thousand, five hundred forty-eight".