11561448 has 32 divisors (see below), whose sum is σ = 29304000. Its totient is φ = 3800448.

The previous prime is 11561447. The next prime is 11561449. The reversal of 11561448 is 84416511.

It is an interprime number because it is at equal distance from previous prime (11561447) and next prime (11561449).

It is not an unprimeable number, because it can be changed into a prime (11561447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1548 + ... + 5051.

It is an arithmetic number, because the mean of its divisors is an integer number (915750).

Almost surely, 2^11561448 is an apocalyptic number.

It is an amenable number.

11561448 is an abundant number, since it is smaller than the sum of its proper divisors (17742552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11561448 is a wasteful number, since it uses less digits than its factorization.

11561448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681 (or 6677 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 11561448 is about 3400.2129345087. The cubic root of 11561448 is about 226.1191842704.

Adding to 11561448 its reverse (84416511), we get a palindrome (95977959).

The spelling of 11561448 in words is "eleven million, five hundred sixty-one thousand, four hundred forty-eight".