23253505 has 32 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 15993600.

The previous prime is 23253469. The next prime is 23253509. The reversal of 23253505 is 50535232.

It is not a de Polignac number, because 23253505 - 2⁹ = 23252993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23253505.

It is not an unprimeable number, because it can be changed into a prime (23253509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97176 + ... + 97414.

It is an arithmetic number, because the mean of its divisors is an integer number (1004400).

Almost surely, 2^23253505 is an apocalyptic number.

It is an amenable number.

23253505 is a deficient number, since it is larger than the sum of its proper divisors (8887295).

23253505 is a wasteful number, since it uses less digits than its factorization.

23253505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 23253505 is about 4822.1888183687. The cubic root of 23253505 is about 285.4277152264.

Adding to 23253505 its reverse (50535232), we get a palindrome (73788737).

The spelling of 23253505 in words is "twenty-three million, two hundred fifty-three thousand, five hundred five".