25036500320 has 96 divisors (see below), whose sum is σ = 63791038080. Its totient is φ = 9230837760.

The previous prime is 25036500319. The next prime is 25036500323. The reversal of 25036500320 is 2300563052.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 25036500320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25036500323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1487150 + ... + 1503890.

It is an arithmetic number, because the mean of its divisors is an integer number (664489980).

Almost surely, 2^25036500320 is an apocalyptic number.

25036500320 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 25036500320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31895519040).

25036500320 is an abundant number, since it is smaller than the sum of its proper divisors (38754537760).

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

25036500320 is a wasteful number, since it uses less digits than its factorization.

25036500320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17488 (or 17480 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The spelling of 25036500320 in words is "twenty-five billion, thirty-six million, five hundred thousand, three hundred twenty".