53311313 has 4 divisors (see below), whose sum is σ = 58157808. Its totient is φ = 48464820.

The previous prime is 53311259. The next prime is 53311373. The reversal of 53311313 is 31311335.

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 a de Polignac number, because none of the positive numbers 2^k-53311313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53311373) 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, 2423231 + ... + 2423252.

It is an arithmetic number, because the mean of its divisors is an integer number (14539452).

Almost surely, 2^53311313 is an apocalyptic number.

It is an amenable number.

53311313 is a deficient number, since it is larger than the sum of its proper divisors (4846495).

53311313 is a wasteful number, since it uses less digits than its factorization.

53311313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4846494.

The product of its digits is 405, while the sum is 20.

The square root of 53311313 is about 7301.4596485908. The cubic root of 53311313 is about 376.3625996034.

Adding to 53311313 its reverse (31311335), we get a palindrome (84622648).

The spelling of 53311313 in words is "fifty-three million, three hundred eleven thousand, three hundred thirteen".