28528242533 has 16 divisors (see below), whose sum is σ = 34037473536. Its totient is φ = 23378467200.

The previous prime is 28528242517. The next prime is 28528242553. The reversal of 28528242533 is 33524282582.

It is a cyclic number.

It is not a de Polignac number, because 28528242533 - 2⁴ = 28528242517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28528242553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305483 + ... + 387783.

It is an arithmetic number, because the mean of its divisors is an integer number (2127342096).

Almost surely, 2^28528242533 is an apocalyptic number.

28528242533 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28528242533 is a deficient number, since it is larger than the sum of its proper divisors (5509231003).

28528242533 is a wasteful number, since it uses less digits than its factorization.

28528242533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84484.

The product of its digits is 921600, while the sum is 44.

The spelling of 28528242533 in words is "twenty-eight billion, five hundred twenty-eight million, two hundred forty-two thousand, five hundred thirty-three".