28542855 has 16 divisors (see below), whose sum is σ = 49820544. Its totient is φ = 13838880.

The previous prime is 28542853. The next prime is 28542863. The reversal of 28542855 is 55824582.

It is not a de Polignac number, because 28542855 - 2¹ = 28542853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28542851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86329 + ... + 86658.

It is an arithmetic number, because the mean of its divisors is an integer number (3113784).

Almost surely, 2^28542855 is an apocalyptic number.

28542855 is a deficient number, since it is larger than the sum of its proper divisors (21277689).

28542855 is a wasteful number, since it uses less digits than its factorization.

28542855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173006.

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

The square root of 28542855 is about 5342.5513567957. The cubic root of 28542855 is about 305.6087635287.

The spelling of 28542855 in words is "twenty-eight million, five hundred forty-two thousand, eight hundred fifty-five".