2564513 has 12 divisors (see below), whose sum is σ = 3009600. Its totient is φ = 2178792.

The previous prime is 2564489. The next prime is 2564519. The reversal of 2564513 is 3154652.

It is not a de Polignac number, because 2564513 - 2¹⁰ = 2563489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9620 + ... + 9882.

It is an arithmetic number, because the mean of its divisors is an integer number (250800).

2^2564513 is an apocalyptic number.

It is an amenable number.

2564513 is a deficient number, since it is larger than the sum of its proper divisors (445087).

2564513 is a wasteful number, since it uses less digits than its factorization.

2564513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 469 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 2564513 is about 1601.4096914906. The cubic root of 2564513 is about 136.8784152244.

The spelling of 2564513 in words is "two million, five hundred sixty-four thousand, five hundred thirteen".