2545564605 has 8 divisors (see below), whose sum is σ = 4072903392. Its totient is φ = 1357634448.

The previous prime is 2545564579. The next prime is 2545564627. The reversal of 2545564605 is 5064655452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2545564605 - 2⁷ = 2545564477 is a prime.

It is a congruent number.

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, 84852139 + ... + 84852168.

It is an arithmetic number, because the mean of its divisors is an integer number (509112924).

Almost surely, 2^2545564605 is an apocalyptic number.

It is an amenable number.

2545564605 is a deficient number, since it is larger than the sum of its proper divisors (1527338787).

2545564605 is a wasteful number, since it uses less digits than its factorization.

2545564605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169704315.

The product of its (nonzero) digits is 720000, while the sum is 42.

The square root of 2545564605 is about 50453.5886236054. The cubic root of 2545564605 is about 1365.4046405995.

The spelling of 2545564605 in words is "two billion, five hundred forty-five million, five hundred sixty-four thousand, six hundred five".