2565013363001 has 4 divisors (see below), whose sum is σ = 2565030031332. Its totient is φ = 2564996694672.

The previous prime is 2565013362893. The next prime is 2565013363021. The reversal of 2565013363001 is 1003633105652.

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 1584564852025 + 980448510976 = 1258795^2 + 990176^2 .

It is a cyclic number.

It is not a de Polignac number, because 2565013363001 - 2¹⁸ = 2565013100857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2565013363021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8101166 + ... + 8411831.

It is an arithmetic number, because the mean of its divisors is an integer number (641257507833).

Almost surely, 2^{2565013363001} is an apocalyptic number.

It is an amenable number.

2565013363001 is a deficient number, since it is larger than the sum of its proper divisors (16668331).

2565013363001 is a wasteful number, since it uses less digits than its factorization.

2565013363001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16668330.

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 2565013363001 its reverse (1003633105652), we get a palindrome (3568646468653).

The spelling of 2565013363001 in words is "two trillion, five hundred sixty-five billion, thirteen million, three hundred sixty-three thousand, one".