2563774313 has 4 divisors (see below), whose sum is σ = 2566685268. Its totient is φ = 2560863360.

The previous prime is 2563774303. The next prime is 2563774333. The reversal of 2563774313 is 3134773652.

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 158558464 + 2405215849 = 12592^2 + 49043^2 .

It is a cyclic number.

It is not a de Polignac number, because 2563774313 - 2²⁶ = 2496665449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2563774303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1454156 + ... + 1455917.

It is an arithmetic number, because the mean of its divisors is an integer number (641671317).

Almost surely, 2^2563774313 is an apocalyptic number.

It is an amenable number.

2563774313 is a deficient number, since it is larger than the sum of its proper divisors (2910955).

2563774313 is an equidigital number, since it uses as much as digits as its factorization.

2563774313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910954.

The product of its digits is 317520, while the sum is 41.

The square root of 2563774313 is about 50633.7270305080. The cubic root of 2563774313 is about 1368.6527172632.

The spelling of 2563774313 in words is "two billion, five hundred sixty-three million, seven hundred seventy-four thousand, three hundred thirteen".