28542545 has 8 divisors (see below), whose sum is σ = 34292160. Its totient is φ = 22806640.

The previous prime is 28542539. The next prime is 28542551. The reversal of 28542545 is 54524582.

It is an interprime number because it is at equal distance from previous prime (28542539) and next prime (28542551).

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

It is not a de Polignac number, because 28542545 - 2⁴ = 28542529 is a prime.

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, 1916 + ... + 7794.

It is an arithmetic number, because the mean of its divisors is an integer number (4286520).

Almost surely, 2^28542545 is an apocalyptic number.

It is an amenable number.

28542545 is a deficient number, since it is larger than the sum of its proper divisors (5749615).

28542545 is an equidigital number, since it uses as much as digits as its factorization.

28542545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855.

The product of its digits is 64000, while the sum is 35.

The square root of 28542545 is about 5342.5223443613. The cubic root of 28542545 is about 305.6076571332.

The spelling of 28542545 in words is "twenty-eight million, five hundred forty-two thousand, five hundred forty-five".