52168720556 has 36 divisors (see below), whose sum is σ = 97219470600. Its totient is φ = 24489739776.

The previous prime is 52168720553. The next prime is 52168720559. The reversal of 52168720556 is 65502786125.

It is an interprime number because it is at equal distance from previous prime (52168720553) and next prime (52168720559).

It is a self number, because there is not a number n which added to its sum of digits gives 52168720556.

It is not an unprimeable number, because it can be changed into a prime (52168720553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417635 + ... + 527973.

It is an arithmetic number, because the mean of its divisors is an integer number (2700540850).

Almost surely, 2^52168720556 is an apocalyptic number.

It is an amenable number.

52168720556 is a deficient number, since it is larger than the sum of its proper divisors (45050750044).

52168720556 is a wasteful number, since it uses less digits than its factorization.

52168720556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110786 (or 110767 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 52168720556 in words is "fifty-two billion, one hundred sixty-eight million, seven hundred twenty thousand, five hundred fifty-six".