53918533 has 4 divisors (see below), whose sum is σ = 53974368. Its totient is φ = 53862700.

The previous prime is 53918521. The next prime is 53918537. The reversal of 53918533 is 33581935.

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 53918533 - 2¹³ = 53910341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53918492 and 53918501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53918537) 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, 26443 + ... + 28408.

It is an arithmetic number, because the mean of its divisors is an integer number (13493592).

Almost surely, 2^53918533 is an apocalyptic number.

It is an amenable number.

53918533 is a deficient number, since it is larger than the sum of its proper divisors (55835).

53918533 is an equidigital number, since it uses as much as digits as its factorization.

53918533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55834.

The product of its digits is 48600, while the sum is 37.

The square root of 53918533 is about 7342.9240088673. The cubic root of 53918533 is about 377.7861415456.

It can be divided in two parts, 5391 and 8533, that added together give a square (13924 = 118²).

The spelling of 53918533 in words is "fifty-three million, nine hundred eighteen thousand, five hundred thirty-three".