2563936653 has 16 divisors (see below), whose sum is σ = 3469573440. Its totient is φ = 1683935616.

The previous prime is 2563936601. The next prime is 2563936717. The reversal of 2563936653 is 3566393652.

It is not a de Polignac number, because 2563936653 - 2¹⁰ = 2563935629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563936153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56626 + ... + 91292.

It is an arithmetic number, because the mean of its divisors is an integer number (216848340).

Almost surely, 2^2563936653 is an apocalyptic number.

It is an amenable number.

2563936653 is a deficient number, since it is larger than the sum of its proper divisors (905636787).

2563936653 is a wasteful number, since it uses less digits than its factorization.

2563936653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35036.

The product of its digits is 2624400, while the sum is 48.

The square root of 2563936653 is about 50635.3300868080. The cubic root of 2563936653 is about 1368.6816046723.

The spelling of 2563936653 in words is "two billion, five hundred sixty-three million, nine hundred thirty-six thousand, six hundred fifty-three".