25513441311 has 16 divisors (see below), whose sum is σ = 35502575616. Its totient is φ = 16266867936.

The previous prime is 25513441309. The next prime is 25513441361. The reversal of 25513441311 is 11314431552.

It is not a de Polignac number, because 25513441311 - 2¹ = 25513441309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25513441301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472066 + ... + 523328.

It is an arithmetic number, because the mean of its divisors is an integer number (2218910976).

Almost surely, 2^25513441311 is an apocalyptic number.

25513441311 is a deficient number, since it is larger than the sum of its proper divisors (9989134305).

25513441311 is a wasteful number, since it uses less digits than its factorization.

25513441311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58502.

The product of its digits is 7200, while the sum is 30.

Adding to 25513441311 its reverse (11314431552), we get a palindrome (36827872863).

The spelling of 25513441311 in words is "twenty-five billion, five hundred thirteen million, four hundred forty-one thousand, three hundred eleven".