53320120517 has 4 divisors (see below), whose sum is σ = 53412530316. Its totient is φ = 53227710720.

The previous prime is 53320120499. The next prime is 53320120547. The reversal of 53320120517 is 71502102335.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53084620801 + 235499716 = 230401^2 + 15346^2 .

It is a cyclic number.

It is not a de Polignac number, because 53320120517 - 2¹⁶ = 53320054981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53320120517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53320120547) 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, 46204034 + ... + 46205187.

It is an arithmetic number, because the mean of its divisors is an integer number (13353132579).

Almost surely, 2^53320120517 is an apocalyptic number.

It is an amenable number.

53320120517 is a deficient number, since it is larger than the sum of its proper divisors (92409799).

53320120517 is an equidigital number, since it uses as much as digits as its factorization.

53320120517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92409798.

The product of its (nonzero) digits is 6300, while the sum is 29.

The spelling of 53320120517 in words is "fifty-three billion, three hundred twenty million, one hundred twenty thousand, five hundred seventeen".