25087000320 has 144 divisors (see below), whose sum is σ = 89024130720. Its totient is φ = 6689857536.

The previous prime is 25087000307. The next prime is 25087000339. The reversal of 25087000320 is 2300078052.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 328389 + ... + 397508.

It is an arithmetic number, because the mean of its divisors is an integer number (618223130).

Almost surely, 2^25087000320 is an apocalyptic number.

25087000320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25087000320 is an abundant number, since it is smaller than the sum of its proper divisors (63937130400).

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

25087000320 is an equidigital number, since it uses as much as digits as its factorization.

25087000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725927 (or 725907 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 25087000320 its reverse (2300078052), we get a palindrome (27387078372).

The spelling of 25087000320 in words is "twenty-five billion, eighty-seven million, three hundred twenty", and thus it is an aban number.