25532232233 has 4 divisors (see below), whose sum is σ = 25795451220. Its totient is φ = 25269013248.

The previous prime is 25532232223. The next prime is 25532232263. The reversal of 25532232233 is 33223223552.

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 8353411609 + 17178820624 = 91397^2 + 131068^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25532232233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25532232233.

It is not an unprimeable number, because it can be changed into a prime (25532232223) 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, 131609348 + ... + 131609541.

It is an arithmetic number, because the mean of its divisors is an integer number (6448862805).

Almost surely, 2^25532232233 is an apocalyptic number.

It is an amenable number.

25532232233 is a deficient number, since it is larger than the sum of its proper divisors (263218987).

25532232233 is an equidigital number, since it uses as much as digits as its factorization.

25532232233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263218986.

The product of its digits is 64800, while the sum is 32.

Adding to 25532232233 its reverse (33223223552), we get a palindrome (58755455785).

The spelling of 25532232233 in words is "twenty-five billion, five hundred thirty-two million, two hundred thirty-two thousand, two hundred thirty-three".