25975361280 has 576 divisors, whose sum is σ = 94941020160. Its totient is φ = 5995315200.

The previous prime is 25975361273. The next prime is 25975361323. The reversal of 25975361280 is 8216357952.

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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 108683401 + ... + 108683639.

It is an arithmetic number, because the mean of its divisors is an integer number (164828160).

Almost surely, 2^25975361280 is an apocalyptic number.

25975361280 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 25975361280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47470510080).

25975361280 is an abundant number, since it is smaller than the sum of its proper divisors (68965658880).

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

25975361280 is a wasteful number, since it uses less digits than its factorization.

25975361280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 25975361280 in words is "twenty-five billion, nine hundred seventy-five million, three hundred sixty-one thousand, two hundred eighty".