23553361 has 6 divisors (see below), whose sum is σ = 25504710. Its totient is φ = 21741408.

The previous prime is 23553353. The next prime is 23553401. The reversal of 23553361 is 16335532.

It can be written as a sum of positive squares in 3 ways, for example, as 810000 + 22743361 = 900^2 + 4769^2 .

It is not a de Polignac number, because 23553361 - 2³ = 23553353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23553461) 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 in 5 ways as a sum of consecutive naturals, for example, 69516 + ... + 69853.

It is an arithmetic number, because the mean of its divisors is an integer number (4250785).

Almost surely, 2^23553361 is an apocalyptic number.

It is an amenable number.

23553361 is a deficient number, since it is larger than the sum of its proper divisors (1951349).

23553361 is a wasteful number, since it uses less digits than its factorization.

23553361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139395 (or 139382 counting only the distinct ones).

The product of its digits is 8100, while the sum is 28.

The square root of 23553361 is about 4853.1805035461. The cubic root of 23553361 is about 286.6493510063.

Adding to 23553361 its reverse (16335532), we get a palindrome (39888893).

The spelling of 23553361 in words is "twenty-three million, five hundred fifty-three thousand, three hundred sixty-one".