2564004424 has 8 divisors (see below), whose sum is σ = 4807508310. Its totient is φ = 1282002208.

The previous prime is 2564004383. The next prime is 2564004427. The reversal of 2564004424 is 4244004652.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2562181924 + 1822500 = 50618^2 + 1350^2 .

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 (2564004427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160250269 + ... + 160250284.

Almost surely, 2^2564004424 is an apocalyptic number.

It is an amenable number.

2564004424 is a deficient number, since it is larger than the sum of its proper divisors (2243503886).

2564004424 is a wasteful number, since it uses less digits than its factorization.

2564004424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320500559 (or 320500555 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 2564004424 is about 50635.9992890434. Note that the first 3 decimals coincide. The cubic root of 2564004424 is about 1368.6936637461.

The spelling of 2564004424 in words is "two billion, five hundred sixty-four million, four thousand, four hundred twenty-four".