1172755553 has 16 divisors (see below), whose sum is σ = 1202688000. Its totient is φ = 1143319632.

The previous prime is 1172755517. The next prime is 1172755559. The reversal of 1172755553 is 3555572711.

It is a cyclic number.

It is not a de Polignac number, because 1172755553 - 2²⁴ = 1155978337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1172755553.

It is not an unprimeable number, because it can be changed into a prime (1172755559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3379526 + ... + 3379872.

It is an arithmetic number, because the mean of its divisors is an integer number (75168000).

Almost surely, 2^1172755553 is an apocalyptic number.

It is an amenable number.

1172755553 is a deficient number, since it is larger than the sum of its proper divisors (29932447).

1172755553 is a wasteful number, since it uses less digits than its factorization.

1172755553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844.

The product of its digits is 183750, while the sum is 41.

The square root of 1172755553 is about 34245.5187287330. The cubic root of 1172755553 is about 1054.5548320616.

The spelling of 1172755553 in words is "one billion, one hundred seventy-two million, seven hundred fifty-five thousand, five hundred fifty-three".