25901059860 has 576 divisors, whose sum is σ = 91299446784. Its totient is φ = 5898009600.

The previous prime is 25901059859. The next prime is 25901059867. The reversal of 25901059860 is 6895010952.

25901059860 is a `hidden beast` number, since 2 + 59 + 0 + 1 + 0 + 598 + 6 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25901059867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 242065927 + ... + 242066033.

It is an arithmetic number, because the mean of its divisors is an integer number (158505984).

Almost surely, 2^25901059860 is an apocalyptic number.

25901059860 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 25901059860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45649723392).

25901059860 is an abundant number, since it is smaller than the sum of its proper divisors (65398386924).

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

25901059860 is a wasteful number, since it uses less digits than its factorization.

25901059860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 25901059860 in words is "twenty-five billion, nine hundred one million, fifty-nine thousand, eight hundred sixty".