28255365 has 16 divisors (see below), whose sum is σ = 50232000. Its totient is φ = 15069456.

The previous prime is 28255363. The next prime is 28255369. The reversal of 28255365 is 56355282.

It is a happy number.

It is not a de Polignac number, because 28255365 - 2¹ = 28255363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28255361) 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, 104515 + ... + 104784.

It is an arithmetic number, because the mean of its divisors is an integer number (3139500).

Almost surely, 2^28255365 is an apocalyptic number.

It is an amenable number.

28255365 is a deficient number, since it is larger than the sum of its proper divisors (21976635).

28255365 is a wasteful number, since it uses less digits than its factorization.

28255365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209313 (or 209307 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 28255365 is about 5315.5775791536. The cubic root of 28255365 is about 304.5792460395.

The spelling of 28255365 in words is "twenty-eight million, two hundred fifty-five thousand, three hundred sixty-five".