11644253 has 4 divisors (see below), whose sum is σ = 11757408. Its totient is φ = 11531100.

The previous prime is 11644223. The next prime is 11644261. The reversal of 11644253 is 35244611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35244611 = 4253 ⋅8287.

It is a cyclic number.

It is not a de Polignac number, because 11644253 - 2¹⁸ = 11382109 is a prime.

It is a Duffinian number.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11644223) 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, 56423 + ... + 56628.

It is an arithmetic number, because the mean of its divisors is an integer number (2939352).

Almost surely, 2^11644253 is an apocalyptic number.

It is an amenable number.

11644253 is a deficient number, since it is larger than the sum of its proper divisors (113155).

11644253 is a wasteful number, since it uses less digits than its factorization.

11644253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113154.

The product of its digits is 2880, while the sum is 26.

The square root of 11644253 is about 3412.3676531113. The cubic root of 11644253 is about 226.6577348941.

Adding to 11644253 its reverse (35244611), we get a palindrome (46888864).

The spelling of 11644253 in words is "eleven million, six hundred forty-four thousand, two hundred fifty-three".