25006940508 has 96 divisors (see below), whose sum is σ = 66520903680. Its totient is φ = 7244072640.

The previous prime is 25006940503. The next prime is 25006940537. The reversal of 25006940508 is 80504960052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25006940503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219903 + ... + 313641.

It is an arithmetic number, because the mean of its divisors is an integer number (692926080).

Almost surely, 2^25006940508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25006940508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33260451840).

25006940508 is an abundant number, since it is smaller than the sum of its proper divisors (41513963172).

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

25006940508 is a wasteful number, since it uses less digits than its factorization.

25006940508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93847 (or 93845 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 25006940508 in words is "twenty-five billion, six million, nine hundred forty thousand, five hundred eight".