163472553 has 8 divisors (see below), whose sum is σ = 242181600. Its totient is φ = 108981684.

The previous prime is 163472521. The next prime is 163472557. The reversal of 163472553 is 355274361.

163472553 is a `hidden beast` number, since 1 + 6 + 34 + 72 + 553 = 666.

It is not a de Polignac number, because 163472553 - 2⁵ = 163472521 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163472557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3027243 + ... + 3027296.

It is an arithmetic number, because the mean of its divisors is an integer number (30272700).

Almost surely, 2^163472553 is an apocalyptic number.

It is an amenable number.

163472553 is a deficient number, since it is larger than the sum of its proper divisors (78709047).

163472553 is an equidigital number, since it uses as much as digits as its factorization.

163472553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054548 (or 6054542 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 163472553 is about 12785.6385448674. The cubic root of 163472553 is about 546.7829306469.

It can be divided in two parts, 163472 and 553, that added together give a square (164025 = 405²).

The spelling of 163472553 in words is "one hundred sixty-three million, four hundred seventy-two thousand, five hundred fifty-three".