2560481289 has 24 divisors (see below), whose sum is σ = 3815132360. Its totient is φ = 1653550848.

The previous prime is 2560481267. The next prime is 2560481293. The reversal of 2560481289 is 9821840652.

2560481289 is a `hidden beast` number, since 2 + 560 + 4 + 8 + 1 + 2 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1792082889 + 768398400 = 42333^2 + 27720^2 .

It is not a de Polignac number, because 2560481289 - 2⁵ = 2560481257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2560481489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59469 + ... + 93045.

Almost surely, 2^2560481289 is an apocalyptic number.

It is an amenable number.

2560481289 is a deficient number, since it is larger than the sum of its proper divisors (1254651071).

2560481289 is a wasteful number, since it uses less digits than its factorization.

2560481289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33849 (or 33846 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 2560481289 is about 50601.1984937116. The cubic root of 2560481289 is about 1368.0664803667.

The spelling of 2560481289 in words is "two billion, five hundred sixty million, four hundred eighty-one thousand, two hundred eighty-nine".