53505353 has 6 divisors (see below), whose sum is σ = 58811802. Its totient is φ = 48641120.

The previous prime is 53505343. The next prime is 53505371. The reversal of 53505353 is 35350535.

It can be written as a sum of positive squares in only one way, i.e., 46063369 + 7441984 = 6787^2 + 2728^2 .

It is not a de Polignac number, because 53505353 - 2¹⁰ = 53504329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53505323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220976 + ... + 221217.

It is an arithmetic number, because the mean of its divisors is an integer number (9801967).

Almost surely, 2^53505353 is an apocalyptic number.

It is an amenable number.

53505353 is a deficient number, since it is larger than the sum of its proper divisors (5306449).

53505353 is a wasteful number, since it uses less digits than its factorization.

53505353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442215 (or 442204 counting only the distinct ones).

The product of its (nonzero) digits is 16875, while the sum is 29.

The square root of 53505353 is about 7314.7353335579. The cubic root of 53505353 is about 376.8186689970.

Adding to 53505353 its reverse (35350535), we get a palindrome (88855888).

The spelling of 53505353 in words is "fifty-three million, five hundred five thousand, three hundred fifty-three".