28252558 has 8 divisors (see below), whose sum is σ = 42594552. Its totient is φ = 14054376.

The previous prime is 28252541. The next prime is 28252561. The reversal of 28252558 is 85525282.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35460 + ... + 36247.

It is an arithmetic number, because the mean of its divisors is an integer number (5324319).

Almost surely, 2^28252558 is an apocalyptic number.

28252558 is a deficient number, since it is larger than the sum of its proper divisors (14341994).

28252558 is a wasteful number, since it uses less digits than its factorization.

28252558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71906.

The product of its digits is 64000, while the sum is 37.

The square root of 28252558 is about 5315.3135373184. The cubic root of 28252558 is about 304.5691596688.

The spelling of 28252558 in words is "twenty-eight million, two hundred fifty-two thousand, five hundred fifty-eight".