2565632043203 has 4 divisors (see below), whose sum is σ = 2567222641248. Its totient is φ = 2564041445160.

The previous prime is 2565632043193. The next prime is 2565632043223. The reversal of 2565632043203 is 3023402365652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2565632043203 - 2²⁴ = 2565615265987 is a prime.

It is a super-2 number, since 2×2565632043203² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2565632043223) 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, 795296603 + ... + 795299828.

It is an arithmetic number, because the mean of its divisors is an integer number (641805660312).

Almost surely, 2^{2565632043203} is an apocalyptic number.

2565632043203 is a deficient number, since it is larger than the sum of its proper divisors (1590598045).

2565632043203 is a wasteful number, since it uses less digits than its factorization.

2565632043203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590598044.

The product of its (nonzero) digits is 777600, while the sum is 41.

The spelling of 2565632043203 in words is "two trillion, five hundred sixty-five billion, six hundred thirty-two million, forty-three thousand, two hundred three".