25081119028 has 96 divisors (see below), whose sum is σ = 53536089600. Its totient is φ = 10257730560.

The previous prime is 25081118983. The next prime is 25081119053. The reversal of 25081119028 is 82091118052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21236598 + ... + 21237778.

It is an arithmetic number, because the mean of its divisors is an integer number (557667600).

Almost surely, 2^25081119028 is an apocalyptic number.

25081119028 is a gapful number since it is divisible by the number (28) 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 25081119028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26768044800).

25081119028 is an abundant number, since it is smaller than the sum of its proper divisors (28454970572).

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

25081119028 is a wasteful number, since it uses less digits than its factorization.

25081119028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902 (or 1886 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 37.

The spelling of 25081119028 in words is "twenty-five billion, eighty-one million, one hundred nineteen thousand, twenty-eight".