25512254241 has 4 divisors (see below), whose sum is σ = 34016338992. Its totient is φ = 17008169492.

The previous prime is 25512254227. The next prime is 25512254279. The reversal of 25512254241 is 14245221552.

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 25512254241 - 2⁶ = 25512254177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25512254221) 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, 4252042371 + ... + 4252042376.

It is an arithmetic number, because the mean of its divisors is an integer number (8504084748).

Almost surely, 2^25512254241 is an apocalyptic number.

It is an amenable number.

25512254241 is a deficient number, since it is larger than the sum of its proper divisors (8504084751).

25512254241 is an equidigital number, since it uses as much as digits as its factorization.

25512254241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8504084750.

The product of its digits is 32000, while the sum is 33.

Adding to 25512254241 its reverse (14245221552), we get a palindrome (39757475793).

The spelling of 25512254241 in words is "twenty-five billion, five hundred twelve million, two hundred fifty-four thousand, two hundred forty-one".