25201235233 has 4 divisors (see below), whose sum is σ = 25206089620. Its totient is φ = 25196380848.

The previous prime is 25201235209. The next prime is 25201235239. The reversal of 25201235233 is 33253210252.

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 10223636544 + 14977598689 = 101112^2 + 122383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25201235233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25201235239) 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, 2419398 + ... + 2429791.

It is an arithmetic number, because the mean of its divisors is an integer number (6301522405).

Almost surely, 2^25201235233 is an apocalyptic number.

It is an amenable number.

25201235233 is a deficient number, since it is larger than the sum of its proper divisors (4854387).

25201235233 is an equidigital number, since it uses as much as digits as its factorization.

25201235233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854386.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 25201235233 its reverse (33253210252), we get a palindrome (58454445485).

The spelling of 25201235233 in words is "twenty-five billion, two hundred one million, two hundred thirty-five thousand, two hundred thirty-three".