25461442293 has 32 divisors (see below), whose sum is σ = 39974681856. Its totient is φ = 14110806528.

The previous prime is 25461442289. The next prime is 25461442337. The reversal of 25461442293 is 39224416452.

It is not a de Polignac number, because 25461442293 - 2² = 25461442289 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25461442213) 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 31 ways as a sum of consecutive naturals, for example, 190855 + ... + 295547.

It is an arithmetic number, because the mean of its divisors is an integer number (1249208808).

Almost surely, 2^25461442293 is an apocalyptic number.

It is an amenable number.

25461442293 is a deficient number, since it is larger than the sum of its proper divisors (14513239563).

25461442293 is a wasteful number, since it uses less digits than its factorization.

25461442293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105053.

The product of its digits is 414720, while the sum is 42.

The spelling of 25461442293 in words is "twenty-five billion, four hundred sixty-one million, four hundred forty-two thousand, two hundred ninety-three".