52171720627 has 16 divisors (see below), whose sum is σ = 59153340960. Its totient is φ = 45615128832.

The previous prime is 52171720619. The next prime is 52171720639. The reversal of 52171720627 is 72602717125.

It is not a de Polignac number, because 52171720627 - 2³ = 52171720619 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 52171720627.

It is not an unprimeable number, because it can be changed into a prime (52171720607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1507623 + ... + 1541839.

It is an arithmetic number, because the mean of its divisors is an integer number (3697083810).

Almost surely, 2^52171720627 is an apocalyptic number.

52171720627 is a deficient number, since it is larger than the sum of its proper divisors (6981620333).

52171720627 is a wasteful number, since it uses less digits than its factorization.

52171720627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40422.

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 52171720627 in words is "fifty-two billion, one hundred seventy-one million, seven hundred twenty thousand, six hundred twenty-seven".