25919091072 has 1024 divisors, whose sum is σ = 101523456000. Its totient is φ = 6330286080.

The previous prime is 25919091047. The next prime is 25919091097. The reversal of 25919091072 is 27019091952.

It is an interprime number because it is at equal distance from previous prime (25919091047) and next prime (25919091097).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 242234443 + ... + 242234549.

It is an arithmetic number, because the mean of its divisors is an integer number (99144000).

Almost surely, 2^25919091072 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 25919091072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50761728000).

25919091072 is an abundant number, since it is smaller than the sum of its proper divisors (75604364928).

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

25919091072 is a wasteful number, since it uses less digits than its factorization.

25919091072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The spelling of 25919091072 in words is "twenty-five billion, nine hundred nineteen million, ninety-one thousand, seventy-two".