28542535 has 8 divisors (see below), whose sum is σ = 39144096. Its totient is φ = 19572000.

The previous prime is 28542529. The next prime is 28542539. The reversal of 28542535 is 53524582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28542535 - 2⁷ = 28542407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28542535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28542539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407716 + ... + 407785.

It is an arithmetic number, because the mean of its divisors is an integer number (4893012).

Almost surely, 2^28542535 is an apocalyptic number.

28542535 is a deficient number, since it is larger than the sum of its proper divisors (10601561).

28542535 is an equidigital number, since it uses as much as digits as its factorization.

28542535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815513.

The product of its digits is 48000, while the sum is 34.

The square root of 28542535 is about 5342.5214084737. The cubic root of 28542535 is about 305.6076214429.

The spelling of 28542535 in words is "twenty-eight million, five hundred forty-two thousand, five hundred thirty-five".