2560032557 has 4 divisors (see below), whose sum is σ = 2585379516. Its totient is φ = 2534685600.

The previous prime is 2560032551. The next prime is 2560032569. The reversal of 2560032557 is 7552300652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1099187716 + 1460844841 = 33154^2 + 38221^2 .

It is a cyclic number.

It is not a de Polignac number, because 2560032557 - 2¹⁸ = 2559770413 is a prime.

It is a super-3 number, since 3×2560032557³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2560032551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12673328 + ... + 12673529.

It is an arithmetic number, because the mean of its divisors is an integer number (646344879).

Almost surely, 2^2560032557 is an apocalyptic number.

It is an amenable number.

2560032557 is a deficient number, since it is larger than the sum of its proper divisors (25346959).

2560032557 is a wasteful number, since it uses less digits than its factorization.

2560032557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25346958.

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 2560032557 is about 50596.7642937767. The cubic root of 2560032557 is about 1367.9865564508.

The spelling of 2560032557 in words is "two billion, five hundred sixty million, thirty-two thousand, five hundred fifty-seven".