2560421504 has 16 divisors (see below), whose sum is σ = 5100839970. Its totient is φ = 1280210688.

The previous prime is 2560421453. The next prime is 2560421519. The reversal of 2560421504 is 4051240652.

It can be written as a sum of positive squares in only one way, i.e., 2560360000 + 61504 = 50600^2 + 248^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001519 + ... + 10001774.

Almost surely, 2^2560421504 is an apocalyptic number.

It is an amenable number.

2560421504 is a deficient number, since it is larger than the sum of its proper divisors (2540418466).

2560421504 is an equidigital number, since it uses as much as digits as its factorization.

2560421504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20003307 (or 20003295 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2560421504 is about 50600.6077433858. The cubic root of 2560421504 is about 1368.0558325650.

The spelling of 2560421504 in words is "two billion, five hundred sixty million, four hundred twenty-one thousand, five hundred four".