505023353 has 4 divisors (see below), whose sum is σ = 506846820. Its totient is φ = 503199888.

The previous prime is 505023349. The next prime is 505023391. The reversal of 505023353 is 353320505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 353320505 = 5 ⋅70664101.

It can be written as a sum of positive squares in 2 ways, for example, as 273009529 + 232013824 = 16523^2 + 15232^2 .

It is a cyclic number.

It is not a de Polignac number, because 505023353 - 2² = 505023349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505023053) 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, 911318 + ... + 911871.

It is an arithmetic number, because the mean of its divisors is an integer number (126711705).

Almost surely, 2^505023353 is an apocalyptic number.

It is an amenable number.

505023353 is a deficient number, since it is larger than the sum of its proper divisors (1823467).

505023353 is a wasteful number, since it uses less digits than its factorization.

505023353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823466.

The product of its (nonzero) digits is 6750, while the sum is 26.

The square root of 505023353 is about 22472.7246456677. The cubic root of 505023353 is about 796.3496991500.

Adding to 505023353 its reverse (353320505), we get a palindrome (858343858).

The spelling of 505023353 in words is "five hundred five million, twenty-three thousand, three hundred fifty-three".