2564488 has 8 divisors (see below), whose sum is σ = 4808430. Its totient is φ = 1282240.

The previous prime is 2564459. The next prime is 2564489. The reversal of 2564488 is 8844652.

2564488 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2316484 + 248004 = 1522^2 + 498^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2564489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160273 + ... + 160288.

2^2564488 is an apocalyptic number.

It is an amenable number.

2564488 is a deficient number, since it is larger than the sum of its proper divisors (2243942).

2564488 is a wasteful number, since it uses less digits than its factorization.

2564488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320567 (or 320563 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The square root of 2564488 is about 1601.4018858488. The cubic root of 2564488 is about 136.8779704393.

The spelling of 2564488 in words is "two million, five hundred sixty-four thousand, four hundred eighty-eight".