11438553 has 16 divisors (see below), whose sum is σ = 17606016. Its totient is φ = 6470400.

The previous prime is 11438543. The next prime is 11438573. The reversal of 11438553 is 35583411.

It is a de Polignac number, because none of the positive numbers 2^k-11438553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11438553.

It is not an unprimeable number, because it can be changed into a prime (11438543) 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 15 ways as a sum of consecutive naturals, for example, 576 + ... + 4817.

It is an arithmetic number, because the mean of its divisors is an integer number (1100376).

Almost surely, 2^11438553 is an apocalyptic number.

It is an amenable number.

11438553 is a deficient number, since it is larger than the sum of its proper divisors (6167463).

11438553 is a wasteful number, since it uses less digits than its factorization.

11438553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5504.

The product of its digits is 7200, while the sum is 30.

The square root of 11438553 is about 3382.0929910338. The cubic root of 11438553 is about 225.3151337281.

The spelling of 11438553 in words is "eleven million, four hundred thirty-eight thousand, five hundred fifty-three".