11511253 has 6 divisors (see below), whose sum is σ = 12409922. Its totient is φ = 10614480.

The previous prime is 11511251. The next prime is 11511263. The reversal of 11511253 is 35211511.

It can be written as a sum of positive squares in 3 ways, for example, as 1129969 + 10381284 = 1063^2 + 3222^2 .

It is not a de Polignac number, because 11511253 - 2¹ = 11511251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11511253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11511251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11763 + ... + 12703.

Almost surely, 2^11511253 is an apocalyptic number.

11511253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11511253 is a deficient number, since it is larger than the sum of its proper divisors (898669).

11511253 is an frugal number, since it uses more digits than its factorization.

11511253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895 (or 954 counting only the distinct ones).

The product of its digits is 150, while the sum is 19.

The square root of 11511253 is about 3392.8237502116. The cubic root of 11511253 is about 225.7914710542.

Adding to 11511253 its reverse (35211511), we get a palindrome (46722764).

The spelling of 11511253 in words is "eleven million, five hundred eleven thousand, two hundred fifty-three".