2545005188 has 24 divisors (see below), whose sum is σ = 4989964224. Its totient is φ = 1125554400.

The previous prime is 2545005149. The next prime is 2545005241. The reversal of 2545005188 is 8815005452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780008 + ... + 783263.

It is an arithmetic number, because the mean of its divisors is an integer number (207915176).

Almost surely, 2^2545005188 is an apocalyptic number.

It is an amenable number.

2545005188 is a deficient number, since it is larger than the sum of its proper divisors (2444959036).

2545005188 is a wasteful number, since it uses less digits than its factorization.

2545005188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563323 (or 1563321 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 38.

The square root of 2545005188 is about 50448.0444417819. The cubic root of 2545005188 is about 1365.3046121648.

The spelling of 2545005188 in words is "two billion, five hundred forty-five million, five thousand, one hundred eighty-eight".