25461442432 has 32 divisors (see below), whose sum is σ = 50734677600. Its totient is φ = 12728033280.

The previous prime is 25461442429. The next prime is 25461442439. The reversal of 25461442432 is 23424416452.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 25461442391 and 25461442400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25461442439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678169 + ... + 714727.

It is an arithmetic number, because the mean of its divisors is an integer number (1585458675).

Almost surely, 2^25461442432 is an apocalyptic number.

It is an amenable number.

25461442432 is a deficient number, since it is larger than the sum of its proper divisors (25273235168).

25461442432 is an equidigital number, since it uses as much as digits as its factorization.

25461442432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42014 (or 42002 counting only the distinct ones).

The product of its digits is 184320, while the sum is 37.

Adding to 25461442432 its reverse (23424416452), we get a palindrome (48885858884).

The spelling of 25461442432 in words is "twenty-five billion, four hundred sixty-one million, four hundred forty-two thousand, four hundred thirty-two".