23253545 has 16 divisors (see below), whose sum is σ = 31992960. Its totient is φ = 15894144.

The previous prime is 23253541. The next prime is 23253553. The reversal of 23253545 is 54535232.

It is not a de Polignac number, because 23253545 - 2² = 23253541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23253541) 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 15 ways as a sum of consecutive naturals, for example, 12389 + ... + 14141.

It is an arithmetic number, because the mean of its divisors is an integer number (1999560).

Almost surely, 2^23253545 is an apocalyptic number.

It is an amenable number.

23253545 is a deficient number, since it is larger than the sum of its proper divisors (8739415).

23253545 is a wasteful number, since it uses less digits than its factorization.

23253545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144.

The product of its digits is 18000, while the sum is 29.

The square root of 23253545 is about 4822.1929658611. The cubic root of 23253545 is about 285.4278788877.

Adding to 23253545 its reverse (54535232), we get a palindrome (77788777).

The spelling of 23253545 in words is "twenty-three million, two hundred fifty-three thousand, five hundred forty-five".