25810941450 has 96 divisors (see below), whose sum is σ = 73201564800. Its totient is φ = 5895936000.

The previous prime is 25810941421. The next prime is 25810941451. The reversal of 25810941450 is 5414901852.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25810941399 and 25810941408.

It is not an unprimeable number, because it can be changed into a prime (25810941451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1884226 + ... + 1897874.

It is an arithmetic number, because the mean of its divisors is an integer number (762516300).

Almost surely, 2^25810941450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25810941450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36600782400).

25810941450 is an abundant number, since it is smaller than the sum of its proper divisors (47390623350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25810941450 is a wasteful number, since it uses less digits than its factorization.

25810941450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15472 (or 15467 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 25810941450 in words is "twenty-five billion, eight hundred ten million, nine hundred forty-one thousand, four hundred fifty".