25304716040 has 64 divisors (see below), whose sum is σ = 60196651200. Its totient is φ = 9546847488.

The previous prime is 25304716037. The next prime is 25304716061. The reversal of 25304716040 is 4061740352.

It is a junction number, because it is equal to n+sod(n) for n = 25304715988 and 25304716006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99182 + ... + 245858.

It is an arithmetic number, because the mean of its divisors is an integer number (940572675).

Almost surely, 2^25304716040 is an apocalyptic number.

25304716040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25304716040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30098325600).

25304716040 is an abundant number, since it is smaller than the sum of its proper divisors (34891935160).

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

25304716040 is a wasteful number, since it uses less digits than its factorization.

25304716040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146934 (or 146930 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 25304716040 in words is "twenty-five billion, three hundred four million, seven hundred sixteen thousand, forty".