2525644660 has 96 divisors (see below), whose sum is σ = 6706022400. Its totient is φ = 776092800.

The previous prime is 2525644631. The next prime is 2525644717. The reversal of 2525644660 is 664465252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97791 + ... + 120889.

It is an arithmetic number, because the mean of its divisors is an integer number (69854400).

Almost surely, 2^2525644660 is an apocalyptic number.

2525644660 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 2525644660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3353011200).

2525644660 is an abundant number, since it is smaller than the sum of its proper divisors (4180377740).

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

2525644660 is a wasteful number, since it uses less digits than its factorization.

2525644660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23197 (or 23195 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The square root of 2525644660 is about 50255.7923029774. The cubic root of 2525644660 is about 1361.8337180552.

The spelling of 2525644660 in words is "two billion, five hundred twenty-five million, six hundred forty-four thousand, six hundred sixty".