25255250528 has 96 divisors (see below), whose sum is σ = 53290016640. Its totient is φ = 11746944000.

The previous prime is 25255250519. The next prime is 25255250597. The reversal of 25255250528 is 82505255252.

It is a congruent number.

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, 11139251 + ... + 11141517.

It is an arithmetic number, because the mean of its divisors is an integer number (555104340).

Almost surely, 2^25255250528 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 25255250528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26645008320).

25255250528 is an abundant number, since it is smaller than the sum of its proper divisors (28034766112).

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

25255250528 is a wasteful number, since it uses less digits than its factorization.

25255250528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620 (or 2612 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 41.

The spelling of 25255250528 in words is "twenty-five billion, two hundred fifty-five million, two hundred fifty thousand, five hundred twenty-eight".