25958856000 has 672 divisors, whose sum is σ = 107760796416. Its totient is φ = 5389824000.

The previous prime is 25958855977. The next prime is 25958856013. The reversal of 25958856000 is 65885952.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20327362 + ... + 20328638.

It is an arithmetic number, because the mean of its divisors is an integer number (160358328).

Almost surely, 2^25958856000 is an apocalyptic number.

25958856000 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 25958856000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53880398208).

25958856000 is an abundant number, since it is smaller than the sum of its proper divisors (81801940416).

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

25958856000 is a wasteful number, since it uses less digits than its factorization.

25958856000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 25958856000 in words is "twenty-five billion, nine hundred fifty-eight million, eight hundred fifty-six thousand".