23520055 has 16 divisors (see below), whose sum is σ = 30915360. Its totient is φ = 17071488.

The previous prime is 23520031. The next prime is 23520059. The reversal of 23520055 is 55002532.

It is a cyclic number.

It is not a de Polignac number, because 23520055 - 2⁷ = 23519927 is a prime.

It is a super-3 number, since 3×23520055³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23520059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769 + ... + 6901.

It is an arithmetic number, because the mean of its divisors is an integer number (1932210).

Almost surely, 2^23520055 is an apocalyptic number.

23520055 is a deficient number, since it is larger than the sum of its proper divisors (7395305).

23520055 is a wasteful number, since it uses less digits than its factorization.

23520055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 23520055 is about 4849.7479315940. The cubic root of 23520055 is about 286.5141735975.

Adding to 23520055 its reverse (55002532), we get a palindrome (78522587).

The spelling of 23520055 in words is "twenty-three million, five hundred twenty thousand, fifty-five".