2545564811 has 2 divisors, whose sum is σ = 2545564812. Its totient is φ = 2545564810.

The previous prime is 2545564799. The next prime is 2545564867. The reversal of 2545564811 is 1184655452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2545564811 - 2¹⁸ = 2545302667 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545564891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272782405 + 1272782406.

It is an arithmetic number, because the mean of its divisors is an integer number (1272782406).

Almost surely, 2^2545564811 is an apocalyptic number.

2545564811 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545564811 is an equidigital number, since it uses as much as digits as its factorization.

2545564811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192000, while the sum is 41.

The square root of 2545564811 is about 50453.5906650855. The cubic root of 2545564811 is about 1365.4046774313.

The spelling of 2545564811 in words is "two billion, five hundred forty-five million, five hundred sixty-four thousand, eight hundred eleven".