10002565 has 16 divisors (see below), whose sum is σ = 12519360. Its totient is φ = 7665280.

The previous prime is 10002563. The next prime is 10002571. The reversal of 10002565 is 56520001.

It is a happy number.

It is not a de Polignac number, because 10002565 - 2¹ = 10002563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11682 + ... + 12508.

It is an arithmetic number, because the mean of its divisors is an integer number (782460).

Almost surely, 2^10002565 is an apocalyptic number.

It is an amenable number.

10002565 is a deficient number, since it is larger than the sum of its proper divisors (2516795).

10002565 is an equidigital number, since it uses as much as digits as its factorization.

10002565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 10002565 is about 3162.6831962750. The cubic root of 10002565 is about 215.4618878451.

Adding to 10002565 its reverse (56520001), we get a palindrome (66522566).

The spelling of 10002565 in words is "ten million, two thousand, five hundred sixty-five".