11525251 has 4 divisors (see below), whose sum is σ = 11543400. Its totient is φ = 11507104.

The previous prime is 11525207. The next prime is 11525257. The reversal of 11525251 is 15252511.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11525251 - 2⁹ = 11524739 is a prime.

It is a super-2 number, since 2×11525251² = 265662821226002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11525257) 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, 8086 + ... + 9403.

It is an arithmetic number, because the mean of its divisors is an integer number (2885850).

Almost surely, 2^11525251 is an apocalyptic number.

11525251 is a deficient number, since it is larger than the sum of its proper divisors (18149).

11525251 is an equidigital number, since it uses as much as digits as its factorization.

11525251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18148.

The product of its digits is 500, while the sum is 22.

The square root of 11525251 is about 3394.8860069228. The cubic root of 11525251 is about 225.8829568592.

Adding to 11525251 its reverse (15252511), we get a palindrome (26777762).

The spelling of 11525251 in words is "eleven million, five hundred twenty-five thousand, two hundred fifty-one".