2563405613 has 8 divisors (see below), whose sum is σ = 2670880800. Its totient is φ = 2457202608.

The previous prime is 2563405609. The next prime is 2563405651. The reversal of 2563405613 is 3165043652.

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 2563405613 - 2² = 2563405609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563455613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313931 + ... + 321992.

It is an arithmetic number, because the mean of its divisors is an integer number (333860100).

Almost surely, 2^2563405613 is an apocalyptic number.

It is an amenable number.

2563405613 is a deficient number, since it is larger than the sum of its proper divisors (107475187).

2563405613 is a wasteful number, since it uses less digits than its factorization.

2563405613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636091.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 2563405613 is about 50630.0860457495. The cubic root of 2563405613 is about 1368.5871048252.

The spelling of 2563405613 in words is "two billion, five hundred sixty-three million, four hundred five thousand, six hundred thirteen".