23049565 has 64 divisors (see below), whose sum is σ = 38154240. Its totient is φ = 12925440.

The previous prime is 23049563. The next prime is 23049571. The reversal of 23049565 is 56594032.

It is not a de Polignac number, because 23049565 - 2¹ = 23049563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23049565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23049563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 168177 + ... + 168313.

It is an arithmetic number, because the mean of its divisors is an integer number (596160).

Almost surely, 2^23049565 is an apocalyptic number.

It is an amenable number.

23049565 is a deficient number, since it is larger than the sum of its proper divisors (15104675).

23049565 is a wasteful number, since it uses less digits than its factorization.

23049565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 23049565 is about 4800.9962507796. The cubic root of 23049565 is about 284.5908358610.

The spelling of 23049565 in words is "twenty-three million, forty-nine thousand, five hundred sixty-five".