23553812 has 6 divisors (see below), whose sum is σ = 41219178. Its totient is φ = 11776904.

The previous prime is 23553811. The next prime is 23553821. The reversal of 23553812 is 21835532.

It can be written as a sum of positive squares in only one way, i.e., 22714756 + 839056 = 4766^2 + 916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23553811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2944223 + ... + 2944230.

It is an arithmetic number, because the mean of its divisors is an integer number (6869863).

Almost surely, 2^23553812 is an apocalyptic number.

It is an amenable number.

23553812 is a deficient number, since it is larger than the sum of its proper divisors (17665366).

23553812 is a wasteful number, since it uses less digits than its factorization.

23553812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888457 (or 5888455 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 23553812 is about 4853.2269676989. The cubic root of 23553812 is about 286.6511805828.

The spelling of 23553812 in words is "twenty-three million, five hundred fifty-three thousand, eight hundred twelve".