28482505 has 8 divisors (see below), whose sum is σ = 34518024. Its totient is φ = 22560000.

The previous prime is 28482479. The next prime is 28482541. The reversal of 28482505 is 50528482.

It can be written as a sum of positive squares in 4 ways, for example, as 11309769 + 17172736 = 3363^2 + 4144^2 .

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

It is not a de Polignac number, because 28482505 - 2⁵ = 28482473 is a prime.

It is a super-2 number, since 2×28482505² = 1622506182150050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27696 + ... + 28705.

It is an arithmetic number, because the mean of its divisors is an integer number (4314753).

Almost surely, 2^28482505 is an apocalyptic number.

It is an amenable number.

28482505 is a deficient number, since it is larger than the sum of its proper divisors (6035519).

28482505 is a wasteful number, since it uses less digits than its factorization.

28482505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56507.

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 28482505 is about 5336.9003176001. The cubic root of 28482505 is about 305.3932221037.

The spelling of 28482505 in words is "twenty-eight million, four hundred eighty-two thousand, five hundred five".