28245255 has 8 divisors (see below), whose sum is σ = 45192432. Its totient is φ = 15064128.

The previous prime is 28245253. The next prime is 28245263. The reversal of 28245255 is 55254282.

It is a happy number.

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

It is not a de Polignac number, because 28245255 - 2¹ = 28245253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28245251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941494 + ... + 941523.

It is an arithmetic number, because the mean of its divisors is an integer number (5649054).

Almost surely, 2^28245255 is an apocalyptic number.

28245255 is a deficient number, since it is larger than the sum of its proper divisors (16947177).

28245255 is a wasteful number, since it uses less digits than its factorization.

28245255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883025.

The product of its digits is 32000, while the sum is 33.

The square root of 28245255 is about 5314.6265155700. The cubic root of 28245255 is about 304.5429147267.

The spelling of 28245255 in words is "twenty-eight million, two hundred forty-five thousand, two hundred fifty-five".