28250305582 has 4 divisors (see below), whose sum is σ = 42375458376. Its totient is φ = 14125152790.

The previous prime is 28250305561. The next prime is 28250305583. The reversal of 28250305582 is 28550305282.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28250305583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7062576394 + ... + 7062576397.

It is an arithmetic number, because the mean of its divisors is an integer number (10593864594).

Almost surely, 2^28250305582 is an apocalyptic number.

28250305582 is a deficient number, since it is larger than the sum of its proper divisors (14125152794).

28250305582 is a wasteful number, since it uses less digits than its factorization.

28250305582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14125152793.

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 28250305582 in words is "twenty-eight billion, two hundred fifty million, three hundred five thousand, five hundred eighty-two".