23212253 has 4 divisors (see below), whose sum is σ = 23226588. Its totient is φ = 23197920.

The previous prime is 23212249. The next prime is 23212271. The reversal of 23212253 is 35221232.

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 5555449 + 17656804 = 2357^2 + 4202^2 .

It is a cyclic number.

It is not a de Polignac number, because 23212253 - 2² = 23212249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212153) 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, 4376 + ... + 8097.

It is an arithmetic number, because the mean of its divisors is an integer number (5806647).

Almost surely, 2^23212253 is an apocalyptic number.

It is an amenable number.

23212253 is a deficient number, since it is larger than the sum of its proper divisors (14335).

23212253 is a wasteful number, since it uses less digits than its factorization.

23212253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14334.

The product of its digits is 720, while the sum is 20.

The square root of 23212253 is about 4817.9096089487. The cubic root of 23212253 is about 285.2588312429.

Adding to 23212253 its reverse (35221232), we get a palindrome (58433485).

The spelling of 23212253 in words is "twenty-three million, two hundred twelve thousand, two hundred fifty-three".