25543250011 has 2 divisors, whose sum is σ = 25543250012. Its totient is φ = 25543250010.

The previous prime is 25543250009. The next prime is 25543250021. The reversal of 25543250011 is 11005234552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25543250011 - 2¹ = 25543250009 is a prime.

It is a super-2 number, since 2×25543250011² (a number of 22 digits) contains 22 as substring.

Together with 25543250009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25543250021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12771625005 + 12771625006.

It is an arithmetic number, because the mean of its divisors is an integer number (12771625006).

Almost surely, 2^25543250011 is an apocalyptic number.

25543250011 is a deficient number, since it is larger than the sum of its proper divisors (1).

25543250011 is an equidigital number, since it uses as much as digits as its factorization.

25543250011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 25543250011 its reverse (11005234552), we get a palindrome (36548484563).

The spelling of 25543250011 in words is "twenty-five billion, five hundred forty-three million, two hundred fifty thousand, eleven".