53313217 has 4 divisors (see below), whose sum is σ = 53452800. Its totient is φ = 53173636.

The previous prime is 53313209. The next prime is 53313233. The reversal of 53313217 is 71231335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53313217 - 2³ = 53313209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53313191 and 53313200.

It is not an unprimeable number, because it can be changed into a prime (53317217) 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, 69217 + ... + 69982.

It is an arithmetic number, because the mean of its divisors is an integer number (13363200).

Almost surely, 2^53313217 is an apocalyptic number.

It is an amenable number.

53313217 is a deficient number, since it is larger than the sum of its proper divisors (139583).

53313217 is a wasteful number, since it uses less digits than its factorization.

53313217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139582.

The product of its digits is 1890, while the sum is 25.

The square root of 53313217 is about 7301.5900323149. The cubic root of 53313217 is about 376.3670801150.

The spelling of 53313217 in words is "fifty-three million, three hundred thirteen thousand, two hundred seventeen".