23533155 has 12 divisors (see below), whose sum is σ = 40790880. Its totient is φ = 12550992.

The previous prime is 23533127. The next prime is 23533171. The reversal of 23533155 is 55133532.

It is not a de Polignac number, because 23533155 - 2⁹ = 23532643 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 261435 + ... + 261524.

It is an arithmetic number, because the mean of its divisors is an integer number (3399240).

Almost surely, 2^23533155 is an apocalyptic number.

23533155 is a deficient number, since it is larger than the sum of its proper divisors (17257725).

23533155 is a wasteful number, since it uses less digits than its factorization.

23533155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522970 (or 522967 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 23533155 is about 4851.0983292446. The cubic root of 23533155 is about 286.5673571333.

Adding to 23533155 its reverse (55133532), we get a palindrome (78666687).

The spelling of 23533155 in words is "twenty-three million, five hundred thirty-three thousand, one hundred fifty-five".