23253155 has 12 divisors (see below), whose sum is σ = 28222176. Its totient is φ = 18392400.

The previous prime is 23253151. The next prime is 23253163. The reversal of 23253155 is 55135232.

It is not a de Polignac number, because 23253155 - 2² = 23253151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23253151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85670 + ... + 85940.

It is an arithmetic number, because the mean of its divisors is an integer number (2351848).

Almost surely, 2^23253155 is an apocalyptic number.

23253155 is a deficient number, since it is larger than the sum of its proper divisors (4969021).

23253155 is an equidigital number, since it uses as much as digits as its factorization.

23253155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 407 counting only the distinct ones).

The product of its digits is 4500, while the sum is 26.

The square root of 23253155 is about 4822.1525276582. The cubic root of 23253155 is about 285.4262831813.

Adding to 23253155 its reverse (55135232), we get a palindrome (78388387).

The spelling of 23253155 in words is "twenty-three million, two hundred fifty-three thousand, one hundred fifty-five".