11628553 has 4 divisors (see below), whose sum is σ = 11639808. Its totient is φ = 11617300.

The previous prime is 11628523. The next prime is 11628557. The reversal of 11628553 is 35582611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35582611 = 19 ⋅1872769.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11628553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11628557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3901 + ... + 6202.

It is an arithmetic number, because the mean of its divisors is an integer number (2909952).

Almost surely, 2^11628553 is an apocalyptic number.

It is an amenable number.

11628553 is a deficient number, since it is larger than the sum of its proper divisors (11255).

11628553 is a wasteful number, since it uses less digits than its factorization.

11628553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11254.

The product of its digits is 7200, while the sum is 31.

The square root of 11628553 is about 3410.0664216405. The cubic root of 11628553 is about 226.5558211872. Note that the first 3 decimals are identical.

The spelling of 11628553 in words is "eleven million, six hundred twenty-eight thousand, five hundred fifty-three".