25032320660 has 24 divisors (see below), whose sum is σ = 52576792800. Its totient is φ = 10011229344.

The previous prime is 25032320591. The next prime is 25032320669. The reversal of 25032320660 is 6602323052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25032320669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18191 + ... + 224489.

It is an arithmetic number, because the mean of its divisors is an integer number (2190699700).

Almost surely, 2^25032320660 is an apocalyptic number.

25032320660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25032320660 is an abundant number, since it is smaller than the sum of its proper divisors (27544472140).

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

25032320660 is a wasteful number, since it uses less digits than its factorization.

25032320660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212375 (or 212373 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

The spelling of 25032320660 in words is "twenty-five billion, thirty-two million, three hundred twenty thousand, six hundred sixty".