2564715 has 16 divisors (see below), whose sum is σ = 4320000. Its totient is φ = 1295712.

The previous prime is 2564711. The next prime is 2564719. The reversal of 2564715 is 5174652.

2564715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2564711) and next prime (2564719).

It is not a de Polignac number, because 2564715 - 2² = 2564711 is a prime.

2564715 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2564711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4215 + ... + 4784.

It is an arithmetic number, because the mean of its divisors is an integer number (270000).

2^2564715 is an apocalyptic number.

2564715 is a deficient number, since it is larger than the sum of its proper divisors (1755285).

2564715 is a wasteful number, since it uses less digits than its factorization.

2564715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9026.

The product of its digits is 8400, while the sum is 30.

The square root of 2564715 is about 1601.4727596809. The cubic root of 2564715 is about 136.8820089820.

The spelling of 2564715 in words is "two million, five hundred sixty-four thousand, seven hundred fifteen".