2564504 has 8 divisors (see below), whose sum is σ = 4808460. Its totient is φ = 1282248.

The previous prime is 2564489. The next prime is 2564519. The reversal of 2564504 is 4054652.

It is an interprime number because it is at equal distance from previous prime (2564489) and next prime (2564519).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160274 + ... + 160289.

2^2564504 is an apocalyptic number.

It is an amenable number.

2564504 is a deficient number, since it is larger than the sum of its proper divisors (2243956).

2564504 is a wasteful number, since it uses less digits than its factorization.

2564504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320569 (or 320565 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2564504 is about 1601.4068814639. The cubic root of 2564504 is about 136.8782551021.

The spelling of 2564504 in words is "two million, five hundred sixty-four thousand, five hundred four".