11217625 has 16 divisors (see below), whose sum is σ = 14332032. Its totient is φ = 8761200.

The previous prime is 11217617. The next prime is 11217653. The reversal of 11217625 is 52671211.

It is not a de Polignac number, because 11217625 - 2³ = 11217617 is a prime.

It is a super-2 number, since 2×11217625² = 251670221281250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 11217625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4332 + ... + 6418.

It is an arithmetic number, because the mean of its divisors is an integer number (895752).

Almost surely, 2^11217625 is an apocalyptic number.

It is an amenable number.

11217625 is a deficient number, since it is larger than the sum of its proper divisors (3114407).

11217625 is an equidigital number, since it uses as much as digits as its factorization.

11217625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145 (or 2135 counting only the distinct ones).

The product of its digits is 840, while the sum is 25.

The square root of 11217625 is about 3349.2723090248. The cubic root of 11217625 is about 223.8550893631.

Adding to 11217625 its reverse (52671211), we get a palindrome (63888836).

The spelling of 11217625 in words is "eleven million, two hundred seventeen thousand, six hundred twenty-five".