28572050201 has 4 divisors (see below), whose sum is σ = 29344267812. Its totient is φ = 27799832592.

The previous prime is 28572050179. The next prime is 28572050231. The reversal of 28572050201 is 10205027582.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21478368025 + 7093682176 = 146555^2 + 84224^2 .

It is a cyclic number.

It is not a de Polignac number, because 28572050201 - 2⁶ = 28572050137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28572050231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386108750 + ... + 386108823.

It is an arithmetic number, because the mean of its divisors is an integer number (7336066953).

Almost surely, 2^28572050201 is an apocalyptic number.

It is an amenable number.

28572050201 is a deficient number, since it is larger than the sum of its proper divisors (772217611).

28572050201 is an equidigital number, since it uses as much as digits as its factorization.

28572050201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772217610.

The product of its (nonzero) digits is 11200, while the sum is 32.

Adding to 28572050201 its reverse (10205027582), we get a palindrome (38777077783).

The spelling of 28572050201 in words is "twenty-eight billion, five hundred seventy-two million, fifty thousand, two hundred one".