11522251 has 12 divisors (see below), whose sum is σ = 12912480. Its totient is φ = 10264800.

The previous prime is 11522249. The next prime is 11522257. The reversal of 11522251 is 15222511.

It is not a de Polignac number, because 11522251 - 2¹ = 11522249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11522257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3726 + ... + 6076.

It is an arithmetic number, because the mean of its divisors is an integer number (1076040).

Almost surely, 2^11522251 is an apocalyptic number.

11522251 is a deficient number, since it is larger than the sum of its proper divisors (1390229).

11522251 is a wasteful number, since it uses less digits than its factorization.

11522251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2393 counting only the distinct ones).

The product of its digits is 200, while the sum is 19.

The square root of 11522251 is about 3394.4441371158. Note that the first 3 decimals coincide. The cubic root of 11522251 is about 225.8633561964.

Adding to 11522251 its reverse (15222511), we get a palindrome (26744762).

It can be divided in two parts, 1152 and 2251, that added together give a triangular number (3403 = T₈₂).

The spelling of 11522251 in words is "eleven million, five hundred twenty-two thousand, two hundred fifty-one".