2545004660 has 48 divisors (see below), whose sum is σ = 5841424512. Its totient is φ = 923702400.

The previous prime is 2545004659. The next prime is 2545004663. The reversal of 2545004660 is 664005452.

2545004660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545004663) 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, 108329 + ... + 129711.

It is an arithmetic number, because the mean of its divisors is an integer number (121696344).

Almost surely, 2^2545004660 is an apocalyptic number.

2545004660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545004660 is an abundant number, since it is smaller than the sum of its proper divisors (3296419852).

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

2545004660 is a wasteful number, since it uses less digits than its factorization.

2545004660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21944 (or 21942 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2545004660 is about 50448.0392086749. The cubic root of 2545004660 is about 1365.3045177471.

The spelling of 2545004660 in words is "two billion, five hundred forty-five million, four thousand, six hundred sixty".