2565632337 has 4 divisors (see below), whose sum is σ = 3420843120. Its totient is φ = 1710421556.

The previous prime is 2565632327. The next prime is 2565632417. The reversal of 2565632337 is 7332365652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2565632337 - 2²⁴ = 2548855121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2565632317) 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, 427605387 + ... + 427605392.

It is an arithmetic number, because the mean of its divisors is an integer number (855210780).

Almost surely, 2^2565632337 is an apocalyptic number.

It is an amenable number.

2565632337 is a deficient number, since it is larger than the sum of its proper divisors (855210783).

2565632337 is an equidigital number, since it uses as much as digits as its factorization.

2565632337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855210782.

The product of its digits is 680400, while the sum is 42.

The square root of 2565632337 is about 50652.0713989073. The cubic root of 2565632337 is about 1368.9832683977.

Adding to 2565632337 its reverse (7332365652), we get a palindrome (9897997989).

The spelling of 2565632337 in words is "two billion, five hundred sixty-five million, six hundred thirty-two thousand, three hundred thirty-seven".