2565341215 has 4 divisors (see below), whose sum is σ = 3078409464. Its totient is φ = 2052272968.

The previous prime is 2565341213. The next prime is 2565341231. The reversal of 2565341215 is 5121435652.

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 2565341215 - 2¹ = 2565341213 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 (2565341213) 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, 256534117 + ... + 256534126.

It is an arithmetic number, because the mean of its divisors is an integer number (769602366).

Almost surely, 2^2565341215 is an apocalyptic number.

2565341215 is a deficient number, since it is larger than the sum of its proper divisors (513068249).

2565341215 is an equidigital number, since it uses as much as digits as its factorization.

2565341215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513068248.

The product of its digits is 36000, while the sum is 34.

The square root of 2565341215 is about 50649.1975750850. The cubic root of 2565341215 is about 1368.9314869822.

Adding to 2565341215 its reverse (5121435652), we get a palindrome (7686776867).

The spelling of 2565341215 in words is "two billion, five hundred sixty-five million, three hundred forty-one thousand, two hundred fifteen".