553506163 has 4 divisors (see below), whose sum is σ = 632578480. Its totient is φ = 474433848.

The previous prime is 553506143. The next prime is 553506193. The reversal of 553506163 is 361605355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361605355 = 5 ⋅72321071.

It is not a de Polignac number, because 553506163 - 2¹⁷ = 553375091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553506103) 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, 39536148 + ... + 39536161.

It is an arithmetic number, because the mean of its divisors is an integer number (158144620).

Almost surely, 2^553506163 is an apocalyptic number.

553506163 is a deficient number, since it is larger than the sum of its proper divisors (79072317).

553506163 is an equidigital number, since it uses as much as digits as its factorization.

553506163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79072316.

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 553506163 is about 23526.7116911820. The cubic root of 553506163 is about 821.0585985830.

The spelling of 553506163 in words is "five hundred fifty-three million, five hundred six thousand, one hundred sixty-three".