2535565 has 4 divisors (see below), whose sum is σ = 3042684. Its totient is φ = 2028448.

The previous prime is 2535553. The next prime is 2535571. The reversal of 2535565 is 5655352.

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 1990921 + 544644 = 1411^2 + 738^2 .

It is a cyclic number.

It is not a de Polignac number, because 2535565 - 2⁷ = 2535437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253552 + ... + 253561.

It is an arithmetic number, because the mean of its divisors is an integer number (760671).

2^2535565 is an apocalyptic number.

It is an amenable number.

2535565 is a deficient number, since it is larger than the sum of its proper divisors (507119).

2535565 is an equidigital number, since it uses as much as digits as its factorization.

2535565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507118.

The product of its digits is 22500, while the sum is 31.

The square root of 2535565 is about 1592.3457539115. The cubic root of 2535565 is about 136.3614412441.

The spelling of 2535565 in words is "two million, five hundred thirty-five thousand, five hundred sixty-five".