25448338111 has 6 divisors (see below), whose sum is σ = 29603168880. Its totient is φ = 21812861196.

The previous prime is 25448338103. The next prime is 25448338117. The reversal of 25448338111 is 11183384452.

It is not a de Polignac number, because 25448338111 - 2³ = 25448338103 is a prime.

It is a super-2 number, since 2×25448338111² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25448338117) 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 5 ways as a sum of consecutive naturals, for example, 259676871 + ... + 259676968.

It is an arithmetic number, because the mean of its divisors is an integer number (4933861480).

Almost surely, 2^25448338111 is an apocalyptic number.

25448338111 is a deficient number, since it is larger than the sum of its proper divisors (4154830769).

25448338111 is an equidigital number, since it uses as much as digits as its factorization.

25448338111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519353853 (or 519353846 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The spelling of 25448338111 in words is "twenty-five billion, four hundred forty-eight million, three hundred thirty-eight thousand, one hundred eleven".