53016845617 has 4 divisors (see below), whose sum is σ = 53017312036. Its totient is φ = 53016379200.

The previous prime is 53016845597. The next prime is 53016845627. The reversal of 53016845617 is 71654861035.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 35916314256 + 17100531361 = 189516^2 + 130769^2 .

It is a cyclic number.

It is not a de Polignac number, because 53016845617 - 2⁷ = 53016845489 is a prime.

It is a super-2 number, since 2×53016845617² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53016845627) 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, 61093 + ... + 331309.

It is an arithmetic number, because the mean of its divisors is an integer number (13254328009).

Almost surely, 2^53016845617 is an apocalyptic number.

It is an amenable number.

53016845617 is a deficient number, since it is larger than the sum of its proper divisors (466419).

53016845617 is a wasteful number, since it uses less digits than its factorization.

53016845617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466418.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 53016845617 in words is "fifty-three billion, sixteen million, eight hundred forty-five thousand, six hundred seventeen".