53820533 has 8 divisors (see below), whose sum is σ = 59527608. Its totient is φ = 48337344.

The previous prime is 53820527. The next prime is 53820539. The reversal of 53820533 is 33502835.

It is an interprime number because it is at equal distance from previous prime (53820527) and next prime (53820539).

It can be written as a sum of positive squares in 4 ways, for example, as 10484644 + 43335889 = 3238^2 + 6583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53820533 - 2⁴ = 53820517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53820496 and 53820505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53820539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55466 + ... + 56427.

It is an arithmetic number, because the mean of its divisors is an integer number (7440951).

Almost surely, 2^53820533 is an apocalyptic number.

It is an amenable number.

53820533 is a deficient number, since it is larger than the sum of its proper divisors (5707075).

53820533 is a wasteful number, since it uses less digits than its factorization.

53820533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111943.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 53820533 is about 7336.2478829440. The cubic root of 53820533 is about 377.5571201375.

The spelling of 53820533 in words is "fifty-three million, eight hundred twenty thousand, five hundred thirty-three".