28425559 has 8 divisors (see below), whose sum is σ = 28950768. Its totient is φ = 27905280.

The previous prime is 28425557. The next prime is 28425563. The reversal of 28425559 is 95552482.

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

It is a cyclic number.

It is not a de Polignac number, because 28425559 - 2¹ = 28425557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28425557) 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, 11589 + ... + 13825.

It is an arithmetic number, because the mean of its divisors is an integer number (3618846).

Almost surely, 2^28425559 is an apocalyptic number.

28425559 is a deficient number, since it is larger than the sum of its proper divisors (525209).

28425559 is a wasteful number, since it uses less digits than its factorization.

28425559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465.

The product of its digits is 144000, while the sum is 40.

The square root of 28425559 is about 5331.5625289403. The cubic root of 28425559 is about 305.1895587743.

The spelling of 28425559 in words is "twenty-eight million, four hundred twenty-five thousand, five hundred fifty-nine".