25442052412105 has 32 divisors (see below), whose sum is σ = 35937663148800. Its totient is φ = 16925828117760.

The previous prime is 25442052412097. The next prime is 25442052412129. The reversal of 25442052412105 is 50121425024452.

It is not a de Polignac number, because 25442052412105 - 2³ = 25442052412097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 27694711 + ... + 28598620.

It is an arithmetic number, because the mean of its divisors is an integer number (1123051973400).

Almost surely, 2^{25442052412105} is an apocalyptic number.

It is an amenable number.

25442052412105 is a deficient number, since it is larger than the sum of its proper divisors (10495610736695).

25442052412105 is a wasteful number, since it uses less digits than its factorization.

25442052412105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56293729.

The product of its (nonzero) digits is 128000, while the sum is 37.

Adding to 25442052412105 its reverse (50121425024452), we get a palindrome (75563477436557).

The spelling of 25442052412105 in words is "twenty-five trillion, four hundred forty-two billion, fifty-two million, four hundred twelve thousand, one hundred five".