25226540420111 has 4 divisors (see below), whose sum is σ = 25233375032424. Its totient is φ = 25219705807800.

The previous prime is 25226540420051. The next prime is 25226540420119. The reversal of 25226540420111 is 11102404562252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25226540420111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25226540420119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3417300620 + ... + 3417308001.

It is an arithmetic number, because the mean of its divisors is an integer number (6308343758106).

Almost surely, 2^{25226540420111} is an apocalyptic number.

25226540420111 is a deficient number, since it is larger than the sum of its proper divisors (6834612313).

25226540420111 is an equidigital number, since it uses as much as digits as its factorization.

25226540420111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834612312.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 25226540420111 its reverse (11102404562252), we get a palindrome (36328944982363).

The spelling of 25226540420111 in words is "twenty-five trillion, two hundred twenty-six billion, five hundred forty million, four hundred twenty thousand, one hundred eleven".