23580561 has 4 divisors (see below), whose sum is σ = 31440752. Its totient is φ = 15720372.

The previous prime is 23580559. The next prime is 23580563. The reversal of 23580561 is 16508532.

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 an interprime number because it is at equal distance from previous prime (23580559) and next prime (23580563).

It is not a de Polignac number, because 23580561 - 2¹ = 23580559 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23580563) 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, 3930091 + ... + 3930096.

It is an arithmetic number, because the mean of its divisors is an integer number (7860188).

Almost surely, 2^23580561 is an apocalyptic number.

It is an amenable number.

23580561 is a deficient number, since it is larger than the sum of its proper divisors (7860191).

23580561 is an equidigital number, since it uses as much as digits as its factorization.

23580561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7860190.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 23580561 is about 4855.9819810209. The cubic root of 23580561 is about 286.7596517957.

The spelling of 23580561 in words is "twenty-three million, five hundred eighty thousand, five hundred sixty-one".