11171625 has 32 divisors (see below), whose sum is σ = 19209216. Its totient is φ = 5766000.

The previous prime is 11171623. The next prime is 11171659. The reversal of 11171625 is 52617111.

It is an ABA number since it can be written as A⋅B^A, here for A=3, B=155.

It is not a de Polignac number, because 11171625 - 2¹ = 11171623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11171595 and 11171604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11171621) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 360360 + ... + 360390.

It is an arithmetic number, because the mean of its divisors is an integer number (600288).

Almost surely, 2^11171625 is an apocalyptic number.

11171625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11171625 is a deficient number, since it is larger than the sum of its proper divisors (8037591).

11171625 is an frugal number, since it uses more digits than its factorization.

11171625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 39 counting only the distinct ones).

The product of its digits is 420, while the sum is 24.

The square root of 11171625 is about 3342.3980911914. The cubic root of 11171625 is about 223.5486833976.

Adding to 11171625 its reverse (52617111), we get a palindrome (63788736).

The spelling of 11171625 in words is "eleven million, one hundred seventy-one thousand, six hundred twenty-five".