11572251 has 4 divisors (see below), whose sum is σ = 15429672. Its totient is φ = 7714832.

The previous prime is 11572241. The next prime is 11572261. The reversal of 11572251 is 15227511.

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

It is an interprime number because it is at equal distance from previous prime (11572241) and next prime (11572261).

It is a cyclic number.

It is not a de Polignac number, because 11572251 - 2²³ = 3183643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11572241) 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, 1928706 + ... + 1928711.

It is an arithmetic number, because the mean of its divisors is an integer number (3857418).

Almost surely, 2^11572251 is an apocalyptic number.

11572251 is a deficient number, since it is larger than the sum of its proper divisors (3857421).

11572251 is an equidigital number, since it uses as much as digits as its factorization.

11572251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3857420.

The product of its digits is 700, while the sum is 24.

The square root of 11572251 is about 3401.8011405724. The cubic root of 11572251 is about 226.1895908234.

Adding to 11572251 its reverse (15227511), we get a palindrome (26799762).

The spelling of 11572251 in words is "eleven million, five hundred seventy-two thousand, two hundred fifty-one".