53831560538729 has 4 divisors (see below), whose sum is σ = 53955882849876. Its totient is φ = 53707238227584.

The previous prime is 53831560538711. The next prime is 53831560538771. The reversal of 53831560538729 is 92783506513835.

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 17917848770704 + 35913711768025 = 4232948^2 + 5992805^2 .

It is a cyclic number.

It is not a de Polignac number, because 53831560538729 - 2³² = 53827265571433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53831560508729) 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, 62161154924 + ... + 62161155789.

It is an arithmetic number, because the mean of its divisors is an integer number (13488970712469).

Almost surely, 2^{53831560538729} is an apocalyptic number.

It is an amenable number.

53831560538729 is a deficient number, since it is larger than the sum of its proper divisors (124322311147).

53831560538729 is a wasteful number, since it uses less digits than its factorization.

53831560538729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124322311146.

The product of its (nonzero) digits is 163296000, while the sum is 65.

The spelling of 53831560538729 in words is "fifty-three trillion, eight hundred thirty-one billion, five hundred sixty million, five hundred thirty-eight thousand, seven hundred twenty-nine".