25583422900 has 72 divisors (see below), whose sum is σ = 64340631936. Its totient is φ = 8647900800.

The previous prime is 25583422867. The next prime is 25583422937. The reversal of 25583422900 is 922438552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207679 + ... + 307078.

It is an arithmetic number, because the mean of its divisors is an integer number (893619888).

Almost surely, 2^25583422900 is an apocalyptic number.

25583422900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25583422900 is an abundant number, since it is smaller than the sum of its proper divisors (38757209036).

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

25583422900 is a wasteful number, since it uses less digits than its factorization.

25583422900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514849 (or 514842 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 25583422900 in words is "twenty-five billion, five hundred eighty-three million, four hundred twenty-two thousand, nine hundred".