25255964160 has 480 divisors, whose sum is σ = 104372025120. Its totient is φ = 5772017664.

The previous prime is 25255964159. The next prime is 25255964179. The reversal of 25255964160 is 6146955252.

25255964160 is a `hidden beast` number, since 2 + 52 + 5 + 596 + 4 + 1 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3383152 + ... + 3390608.

It is an arithmetic number, because the mean of its divisors is an integer number (217441719).

Almost surely, 2^25255964160 is an apocalyptic number.

25255964160 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 25255964160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52186012560).

25255964160 is an abundant number, since it is smaller than the sum of its proper divisors (79116060960).

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

25255964160 is an equidigital number, since it uses as much as digits as its factorization.

25255964160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7503 (or 7474 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 25255964160 in words is "twenty-five billion, two hundred fifty-five million, nine hundred sixty-four thousand, one hundred sixty".