25275505000 has 80 divisors (see below), whose sum is σ = 61795594080. Its totient is φ = 9670584000.

The previous prime is 25275504997. The next prime is 25275505033. The reversal of 25275505000 is 50557252.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5107 + ... + 224893.

It is an arithmetic number, because the mean of its divisors is an integer number (772444926).

Almost surely, 2^25275505000 is an apocalyptic number.

25275505000 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 25275505000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30897797040).

25275505000 is an abundant number, since it is smaller than the sum of its proper divisors (36520089080).

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

25275505000 is a wasteful number, since it uses less digits than its factorization.

25275505000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219836 (or 219817 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 31.

The spelling of 25275505000 in words is "twenty-five billion, two hundred seventy-five million, five hundred five thousand".