11840553 has 16 divisors (see below), whose sum is σ = 18465600. Its totient is φ = 7477920.

The previous prime is 11840539. The next prime is 11840557. The reversal of 11840553 is 35504811.

It is not a de Polignac number, because 11840553 - 2⁶ = 11840489 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11840557) 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 15 ways as a sum of consecutive naturals, for example, 11028 + ... + 12053.

It is an arithmetic number, because the mean of its divisors is an integer number (1154100).

Almost surely, 2^11840553 is an apocalyptic number.

It is an amenable number.

11840553 is a deficient number, since it is larger than the sum of its proper divisors (6625047).

11840553 is a wasteful number, since it uses less digits than its factorization.

11840553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23109 (or 23103 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 11840553 is about 3441.0104620591. The cubic root of 11840553 is about 227.9243169856.

The spelling of 11840553 in words is "eleven million, eight hundred forty thousand, five hundred fifty-three".