11345553 has 12 divisors (see below), whose sum is σ = 16548480. Its totient is φ = 7489656.

The previous prime is 11345549. The next prime is 11345563. The reversal of 11345553 is 35554311.

11345553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11345553 - 2² = 11345549 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (11345563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5193 + ... + 7046.

It is an arithmetic number, because the mean of its divisors is an integer number (1379040).

Almost surely, 2^11345553 is an apocalyptic number.

It is an amenable number.

11345553 is a deficient number, since it is larger than the sum of its proper divisors (5202927).

11345553 is a wasteful number, since it uses less digits than its factorization.

11345553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12348 (or 12345 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 11345553 is about 3368.3160481166. The cubic root of 11345553 is about 224.7028373329.

Adding to 11345553 its reverse (35554311), we get a palindrome (46899864).

It can be divided in two parts, 11 and 345553, that multiplied together give a palindrome (3801083).

The spelling of 11345553 in words is "eleven million, three hundred forty-five thousand, five hundred fifty-three".