11561253 has 16 divisors (see below), whose sum is σ = 17702400. Its totient is φ = 6637680.

The previous prime is 11561237. The next prime is 11561257. The reversal of 11561253 is 35216511.

It is not a de Polignac number, because 11561253 - 2⁴ = 11561237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11561257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8593 + ... + 9846.

It is an arithmetic number, because the mean of its divisors is an integer number (1106400).

Almost surely, 2^11561253 is an apocalyptic number.

It is an amenable number.

11561253 is a deficient number, since it is larger than the sum of its proper divisors (6141147).

11561253 is a wasteful number, since it uses less digits than its factorization.

11561253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18472.

The product of its digits is 900, while the sum is 24.

The square root of 11561253 is about 3400.1842597130. The cubic root of 11561253 is about 226.1179129911.

Adding to 11561253 its reverse (35216511), we get a palindrome (46777764).

The spelling of 11561253 in words is "eleven million, five hundred sixty-one thousand, two hundred fifty-three".