11971025 has 24 divisors (see below), whose sum is σ = 16391808. Its totient is φ = 8600000.

The previous prime is 11971013. The next prime is 11971033. The reversal of 11971025 is 52017911.

It is not a de Polignac number, because 11971025 - 2⁶ = 11970961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11970985 and 11971003.

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 23 ways as a sum of consecutive naturals, for example, 27560 + ... + 27990.

It is an arithmetic number, because the mean of its divisors is an integer number (682992).

Almost surely, 2^11971025 is an apocalyptic number.

It is an amenable number.

11971025 is a deficient number, since it is larger than the sum of its proper divisors (4420783).

11971025 is a wasteful number, since it uses less digits than its factorization.

11971025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 11971025 is about 3459.9169065167. The cubic root of 11971025 is about 228.7584328065.

Adding to 11971025 its reverse (52017911), we get a palindrome (63988936).

It can be divided in two parts, 1197 and 1025, that added together give a palindrome (2222).

The spelling of 11971025 in words is "eleven million, nine hundred seventy-one thousand, twenty-five".