53918331 has 16 divisors (see below), whose sum is σ = 75617280. Its totient is φ = 34126560.

The previous prime is 53918329. The next prime is 53918341. The reversal of 53918331 is 13381935.

It is not a de Polignac number, because 53918331 - 2¹ = 53918329 is a prime.

It is a super-2 number, since 2×53918331² = 5814372835651122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53918292 and 53918301.

It is not an unprimeable number, because it can be changed into a prime (53918341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541 + ... + 10398.

It is an arithmetic number, because the mean of its divisors is an integer number (4726080).

Almost surely, 2^53918331 is an apocalyptic number.

53918331 is a deficient number, since it is larger than the sum of its proper divisors (21698949).

53918331 is a wasteful number, since it uses less digits than its factorization.

53918331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11026.

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

The square root of 53918331 is about 7342.9102541159. The cubic root of 53918331 is about 377.7856697666.

The spelling of 53918331 in words is "fifty-three million, nine hundred eighteen thousand, three hundred thirty-one".