23049566 has 4 divisors (see below), whose sum is σ = 34574352. Its totient is φ = 11524782.

The previous prime is 23049563. The next prime is 23049571. The reversal of 23049566 is 66594032.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 5762390 + ... + 5762393.

It is an arithmetic number, because the mean of its divisors is an integer number (8643588).

Almost surely, 2^23049566 is an apocalyptic number.

23049566 is a deficient number, since it is larger than the sum of its proper divisors (11524786).

23049566 is a wasteful number, since it uses less digits than its factorization.

23049566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11524785.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 23049566 is about 4800.9963549247. The cubic root of 23049566 is about 284.5908399766.

Adding to 23049566 its sum of digits (35), we get a square (23049601 = 4801²).

The spelling of 23049566 in words is "twenty-three million, forty-nine thousand, five hundred sixty-six".