11129553 has 24 divisors (see below), whose sum is σ = 16668288. Its totient is φ = 7151712.

The previous prime is 11129537. The next prime is 11129579. The reversal of 11129553 is 35592111.

11129553 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 11129553 - 2⁴ = 11129537 is a prime.

Its product of digits (1350) is a multiple of the sum of its prime divisors (450).

It is not an unprimeable number, because it can be changed into a prime (11129593) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34951 + ... + 35267.

It is an arithmetic number, because the mean of its divisors is an integer number (694512).

Almost surely, 2^11129553 is an apocalyptic number.

It is an amenable number.

11129553 is a deficient number, since it is larger than the sum of its proper divisors (5538735).

11129553 is a wasteful number, since it uses less digits than its factorization.

11129553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 450 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 11129553 is about 3336.0984697697. The cubic root of 11129553 is about 223.2677045349.

The spelling of 11129553 in words is "eleven million, one hundred twenty-nine thousand, five hundred fifty-three".