28310253 has 16 divisors (see below), whose sum is σ = 40098240. Its totient is φ = 17705216.

The previous prime is 28310251. The next prime is 28310257. The reversal of 28310253 is 35201382.

It is a cyclic number.

It is not a de Polignac number, because 28310253 - 2¹ = 28310251 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28310251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19126 + ... + 20552.

It is an arithmetic number, because the mean of its divisors is an integer number (2506140).

Almost surely, 2^28310253 is an apocalyptic number.

It is an amenable number.

28310253 is a deficient number, since it is larger than the sum of its proper divisors (11787987).

28310253 is a wasteful number, since it uses less digits than its factorization.

28310253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 28310253 is about 5320.7380127197. The cubic root of 28310253 is about 304.7763405523.

The spelling of 28310253 in words is "twenty-eight million, three hundred ten thousand, two hundred fifty-three".