2565342013 has 8 divisors (see below), whose sum is σ = 2788496928. Its totient is φ = 2345875824.

The previous prime is 2565341971. The next prime is 2565342049. The reversal of 2565342013 is 3102435652.

It is a happy number.

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 2565342013 - 2¹⁷ = 2565210941 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 (2565342083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920731 + ... + 923512.

It is an arithmetic number, because the mean of its divisors is an integer number (348562116).

Almost surely, 2^2565342013 is an apocalyptic number.

It is an amenable number.

2565342013 is a deficient number, since it is larger than the sum of its proper divisors (223154915).

2565342013 is a wasteful number, since it uses less digits than its factorization.

2565342013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844363.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 2565342013 is about 50649.2054528005. The cubic root of 2565342013 is about 1368.9316289265.

Adding to 2565342013 its reverse (3102435652), we get a palindrome (5667777665).

The spelling of 2565342013 in words is "two billion, five hundred sixty-five million, three hundred forty-two thousand, thirteen".