2558530561 has 8 divisors (see below), whose sum is σ = 2591902784. Its totient is φ = 2525374800.

The previous prime is 2558530543. The next prime is 2558530567. The reversal of 2558530561 is 1650358552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2558530561 - 2⁵ = 2558530529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2558530567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30255 + ... + 77668.

It is an arithmetic number, because the mean of its divisors is an integer number (323987848).

Almost surely, 2^2558530561 is an apocalyptic number.

It is an amenable number.

2558530561 is a deficient number, since it is larger than the sum of its proper divisors (33372223).

2558530561 is a wasteful number, since it uses less digits than its factorization.

2558530561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108231.

The product of its (nonzero) digits is 180000, while the sum is 40.

The square root of 2558530561 is about 50581.9193091761. The cubic root of 2558530561 is about 1367.7189671057.

The spelling of 2558530561 in words is "two billion, five hundred fifty-eight million, five hundred thirty thousand, five hundred sixty-one".