2564523187 has 2 divisors, whose sum is σ = 2564523188. Its totient is φ = 2564523186.

The previous prime is 2564523133. The next prime is 2564523223. The reversal of 2564523187 is 7813254652.

2564523187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2564523187 - 2¹¹ = 2564521139 is a prime.

It is not a weakly prime, because it can be changed into another prime (2564523487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282261593 + 1282261594.

It is an arithmetic number, because the mean of its divisors is an integer number (1282261594).

Almost surely, 2^2564523187 is an apocalyptic number.

2564523187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564523187 is an equidigital number, since it uses as much as digits as its factorization.

2564523187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 43.

The square root of 2564523187 is about 50641.1215021942. The cubic root of 2564523187 is about 1368.7859646465.

The spelling of 2564523187 in words is "two billion, five hundred sixty-four million, five hundred twenty-three thousand, one hundred eighty-seven".