2564011 has 2 divisors, whose sum is σ = 2564012. Its totient is φ = 2564010.

The previous prime is 2563997. The next prime is 2564027. The reversal of 2564011 is 1104652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2564011 - 2¹¹ = 2561963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2564011.

It is not a weakly prime, because it can be changed into another prime (2564071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282005 + 1282006.

It is an arithmetic number, because the mean of its divisors is an integer number (1282006).

2^2564011 is an apocalyptic number.

2564011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564011 is an equidigital number, since it uses as much as digits as its factorization.

2564011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2564011 is about 1601.2529469138. The cubic root of 2564011 is about 136.8694833859.

Adding to 2564011 its reverse (1104652), we get a palindrome (3668663).

It can be divided in two parts, 25640 and 11, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 2564011 in words is "two million, five hundred sixty-four thousand, eleven".