25500713580 has 144 divisors (see below), whose sum is σ = 82570924800. Its totient is φ = 6351488640.

The previous prime is 25500713551. The next prime is 25500713587. The reversal of 25500713580 is 8531700552.

25500713580 is a `hidden beast` number, since 2 + 5 + 5 + 0 + 0 + 71 + 3 + 580 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (25500713587) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190311 + ... + 295329.

It is an arithmetic number, because the mean of its divisors is an integer number (573409200).

Almost surely, 2^25500713580 is an apocalyptic number.

25500713580 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 25500713580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41285462400).

25500713580 is an abundant number, since it is smaller than the sum of its proper divisors (57070211220).

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

25500713580 is a wasteful number, since it uses less digits than its factorization.

25500713580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105124 (or 105119 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 25500713580 in words is "twenty-five billion, five hundred million, seven hundred thirteen thousand, five hundred eighty".