53986502161 has 8 divisors (see below), whose sum is σ = 55491352424. Its totient is φ = 52484060160.

The previous prime is 53986502159. The next prime is 53986502173. The reversal of 53986502161 is 16120568935.

It can be written as a sum of positive squares in 4 ways, for example, as 14600130561 + 39386371600 = 120831^2 + 198460^2 .

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 53986502161 - 2¹ = 53986502159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53986502111) 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, 556560 + ... + 646321.

It is an arithmetic number, because the mean of its divisors is an integer number (6936419053).

Almost surely, 2^53986502161 is an apocalyptic number.

It is an amenable number.

53986502161 is a deficient number, since it is larger than the sum of its proper divisors (1504850263).

53986502161 is a wasteful number, since it uses less digits than its factorization.

53986502161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204131.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 53986502161 in words is "fifty-three billion, nine hundred eighty-six million, five hundred two thousand, one hundred sixty-one".