2545564155 has 8 divisors (see below), whose sum is σ = 4072902672. Its totient is φ = 1357634208.

The previous prime is 2545564111. The next prime is 2545564157. The reversal of 2545564155 is 5514655452.

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

It is not a de Polignac number, because 2545564155 - 2¹³ = 2545555963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2545564157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84852124 + ... + 84852153.

It is an arithmetic number, because the mean of its divisors is an integer number (509112834).

Almost surely, 2^2545564155 is an apocalyptic number.

2545564155 is a deficient number, since it is larger than the sum of its proper divisors (1527338517).

2545564155 is a wasteful number, since it uses less digits than its factorization.

2545564155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169704285.

The product of its digits is 600000, while the sum is 42.

The square root of 2545564155 is about 50453.5841640611. The cubic root of 2545564155 is about 1365.4045601416.

The spelling of 2545564155 in words is "two billion, five hundred forty-five million, five hundred sixty-four thousand, one hundred fifty-five".