2560221005 has 16 divisors (see below), whose sum is σ = 3087901440. Its totient is φ = 2037782208.

The previous prime is 2560220983. The next prime is 2560221017. The reversal of 2560221005 is 5001220652.

It is a cyclic number.

It is not a de Polignac number, because 2560221005 - 2⁸ = 2560220749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 899114 + ... + 901956.

It is an arithmetic number, because the mean of its divisors is an integer number (192993840).

Almost surely, 2^2560221005 is an apocalyptic number.

It is an amenable number.

2560221005 is a deficient number, since it is larger than the sum of its proper divisors (527680435).

2560221005 is a wasteful number, since it uses less digits than its factorization.

2560221005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2560221005 is about 50598.6265129796. The cubic root of 2560221005 is about 1368.0201221705.

Adding to 2560221005 its reverse (5001220652), we get a palindrome (7561441657).

The spelling of 2560221005 in words is "two billion, five hundred sixty million, two hundred twenty-one thousand, five".