25511341313 has 4 divisors (see below), whose sum is σ = 25515752448. Its totient is φ = 25506930180.

The previous prime is 25511341291. The next prime is 25511341321. The reversal of 25511341313 is 31314311552.

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 25511341313 - 2³⁰ = 24437599489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25511341333) 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, 2196881 + ... + 2208462.

It is an arithmetic number, because the mean of its divisors is an integer number (6378938112).

Almost surely, 2^25511341313 is an apocalyptic number.

It is an amenable number.

25511341313 is a deficient number, since it is larger than the sum of its proper divisors (4411135).

25511341313 is an equidigital number, since it uses as much as digits as its factorization.

25511341313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4411134.

The product of its digits is 5400, while the sum is 29.

Adding to 25511341313 its reverse (31314311552), we get a palindrome (56825652865).

The spelling of 25511341313 in words is "twenty-five billion, five hundred eleven million, three hundred forty-one thousand, three hundred thirteen".