28225759 has 8 divisors (see below), whose sum is σ = 28968192. Its totient is φ = 27487320.

The previous prime is 28225741. The next prime is 28225793. The reversal of 28225759 is 95752282.

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

It is not a de Polignac number, because 28225759 - 2¹⁵ = 28192991 is a prime.

It is a super-2 number, since 2×28225759² = 1593386942252162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28222759) 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, 17772 + ... + 19294.

It is an arithmetic number, because the mean of its divisors is an integer number (3621024).

Almost surely, 2^28225759 is an apocalyptic number.

28225759 is a deficient number, since it is larger than the sum of its proper divisors (742433).

28225759 is a wasteful number, since it uses less digits than its factorization.

28225759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997.

The product of its digits is 100800, while the sum is 40.

The square root of 28225759 is about 5312.7920155037. The cubic root of 28225759 is about 304.4728293824.

The spelling of 28225759 in words is "twenty-eight million, two hundred twenty-five thousand, seven hundred fifty-nine".