28263255 has 32 divisors (see below), whose sum is σ = 47900160. Its totient is φ = 14206080.

The previous prime is 28263253. The next prime is 28263269. The reversal of 28263255 is 55236282.

It is not a de Polignac number, because 28263255 - 2¹ = 28263253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28263253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17950 + ... + 19460.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^28263255 is an apocalyptic number.

28263255 is a deficient number, since it is larger than the sum of its proper divisors (19636905).

28263255 is a wasteful number, since it uses less digits than its factorization.

28263255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591.

The product of its digits is 28800, while the sum is 33.

The square root of 28263255 is about 5316.3196856472. The cubic root of 28263255 is about 304.6075935363.

The spelling of 28263255 in words is "twenty-eight million, two hundred sixty-three thousand, two hundred fifty-five".