25805376576 has 560 divisors, whose sum is σ = 94267324800. Its totient is φ = 6812024832.

The previous prime is 25805376503. The next prime is 25805376601. The reversal of 25805376576 is 67567350852.

25805376576 is a `hidden beast` number, since 2 + 58 + 0 + 537 + 6 + 57 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 36396510 + ... + 36397218.

Almost surely, 2^25805376576 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 25805376576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47133662400).

25805376576 is an abundant number, since it is smaller than the sum of its proper divisors (68461948224).

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

25805376576 is a wasteful number, since it uses less digits than its factorization.

25805376576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 54.

The spelling of 25805376576 in words is "twenty-five billion, eight hundred five million, three hundred seventy-six thousand, five hundred seventy-six".