53918313 has 4 divisors (see below), whose sum is σ = 71891088. Its totient is φ = 35945540.

The previous prime is 53918303. The next prime is 53918329. The reversal of 53918313 is 31381935.

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 53918313 - 2¹⁴ = 53901929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53918303) 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, 8986383 + ... + 8986388.

It is an arithmetic number, because the mean of its divisors is an integer number (17972772).

Almost surely, 2^53918313 is an apocalyptic number.

It is an amenable number.

53918313 is a deficient number, since it is larger than the sum of its proper divisors (17972775).

53918313 is a wasteful number, since it uses less digits than its factorization.

53918313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17972774.

The product of its digits is 9720, while the sum is 33.

The square root of 53918313 is about 7342.9090284437. The cubic root of 53918313 is about 377.7856277268.

The spelling of 53918313 in words is "fifty-three million, nine hundred eighteen thousand, three hundred thirteen".