2545564505 has 16 divisors (see below), whose sum is σ = 3358623744. Its totient is φ = 1836737280.

The previous prime is 2545564477. The next prime is 2545564519. The reversal of 2545564505 is 5054655452.

It is not a de Polignac number, because 2545564505 - 2⁸ = 2545564249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175232 + ... + 189201.

It is an arithmetic number, because the mean of its divisors is an integer number (209913984).

Almost surely, 2^2545564505 is an apocalyptic number.

It is an amenable number.

2545564505 is a deficient number, since it is larger than the sum of its proper divisors (813059239).

2545564505 is a wasteful number, since it uses less digits than its factorization.

2545564505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364576.

The product of its (nonzero) digits is 600000, while the sum is 41.

The square root of 2545564505 is about 50453.5876325956. The cubic root of 2545564505 is about 1365.4046227200.

The spelling of 2545564505 in words is "two billion, five hundred forty-five million, five hundred sixty-four thousand, five hundred five".