25361063280 has 320 divisors, whose sum is σ = 101874432000. Its totient is φ = 5796645120.

The previous prime is 25361063269. The next prime is 25361063303. The reversal of 25361063280 is 8236016352.

It is a happy number.

25361063280 is a `hidden beast` number, since 2 + 5 + 3 + 6 + 10 + 632 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 723765 + ... + 757995.

It is an arithmetic number, because the mean of its divisors is an integer number (318357600).

Almost surely, 2^25361063280 is an apocalyptic number.

25361063280 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 25361063280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50937216000).

25361063280 is an abundant number, since it is smaller than the sum of its proper divisors (76513368720).

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

25361063280 is a wasteful number, since it uses less digits than its factorization.

25361063280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34274 (or 34248 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 25361063280 in words is "twenty-five billion, three hundred sixty-one million, sixty-three thousand, two hundred eighty".