25371680320 has 112 divisors (see below), whose sum is σ = 70217873280. Its totient is φ = 8551378944.

The previous prime is 25371680309. The next prime is 25371680353. The reversal of 25371680320 is 2308617352.

It is a tau number, because it is divible by the number of its divisors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 25371680320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36172 + ... + 228148.

Almost surely, 2^25371680320 is an apocalyptic number.

25371680320 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 25371680320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35108936640).

25371680320 is an abundant number, since it is smaller than the sum of its proper divisors (44846192960).

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

25371680320 is a wasteful number, since it uses less digits than its factorization.

25371680320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192060 (or 192050 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 25371680320 in words is "twenty-five billion, three hundred seventy-one million, six hundred eighty thousand, three hundred twenty".