2560520064 has 32 divisors (see below), whose sum is σ = 6801382440. Its totient is φ = 853506560.

The previous prime is 2560520063. The next prime is 2560520071. The reversal of 2560520064 is 4600250652.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2560520063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333627 + ... + 3334394.

Almost surely, 2^2560520064 is an apocalyptic number.

2560520064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2560520064 is an abundant number, since it is smaller than the sum of its proper divisors (4240862376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2560520064 is an equidigital number, since it uses as much as digits as its factorization.

2560520064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6668038 (or 6668026 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2560520064 is about 50601.5816353600. The cubic root of 2560520064 is about 1368.0733861661.

The spelling of 2560520064 in words is "two billion, five hundred sixty million, five hundred twenty thousand, sixty-four".