2564911545 has 16 divisors (see below), whose sum is σ = 4690124160. Its totient is φ = 1172530944.

The previous prime is 2564911541. The next prime is 2564911553. The reversal of 2564911545 is 5451194652.

It is a happy number.

2564911545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2564911545 - 2² = 2564911541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2564911497 and 2564911506.

It is not an unprimeable number, because it can be changed into a prime (2564911541) 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, 12213760 + ... + 12213969.

It is an arithmetic number, because the mean of its divisors is an integer number (293132760).

Almost surely, 2^2564911545 is an apocalyptic number.

It is an amenable number.

2564911545 is a deficient number, since it is larger than the sum of its proper divisors (2125212615).

2564911545 is a wasteful number, since it uses less digits than its factorization.

2564911545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24427744.

The product of its digits is 216000, while the sum is 42.

The square root of 2564911545 is about 50644.9557705405. The cubic root of 2564911545 is about 1368.8550550920.

The spelling of 2564911545 in words is "two billion, five hundred sixty-four million, nine hundred eleven thousand, five hundred forty-five".