28573302001 has 4 divisors (see below), whose sum is σ = 28599493104. Its totient is φ = 28547110900.

The previous prime is 28573301969. The next prime is 28573302013. The reversal of 28573302001 is 10020337582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28573302001 - 2⁵ = 28573301969 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28573302061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13093915 + ... + 13096096.

It is an arithmetic number, because the mean of its divisors is an integer number (7149873276).

Almost surely, 2^28573302001 is an apocalyptic number.

It is an amenable number.

28573302001 is a deficient number, since it is larger than the sum of its proper divisors (26191103).

28573302001 is a wasteful number, since it uses less digits than its factorization.

28573302001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26191102.

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 28573302001 its reverse (10020337582), we get a palindrome (38593639583).

The spelling of 28573302001 in words is "twenty-eight billion, five hundred seventy-three million, three hundred two thousand, one".