23205053 has 4 divisors (see below), whose sum is σ = 23434908. Its totient is φ = 22975200.

The previous prime is 23205011. The next prime is 23205067. The reversal of 23205053 is 35050232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20811844 + 2393209 = 4562^2 + 1547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23205053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23205653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114776 + ... + 114977.

It is an arithmetic number, because the mean of its divisors is an integer number (5858727).

Almost surely, 2^23205053 is an apocalyptic number.

It is an amenable number.

23205053 is a deficient number, since it is larger than the sum of its proper divisors (229855).

23205053 is a wasteful number, since it uses less digits than its factorization.

23205053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229854.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 23205053 is about 4817.1623389709. The cubic root of 23205053 is about 285.2293342358.

Adding to 23205053 its reverse (35050232), we get a palindrome (58255285).

The spelling of 23205053 in words is "twenty-three million, two hundred five thousand, fifty-three".