52916764420881 has 27 divisors (see below), whose sum is σ = 77595323453193. Its totient is φ = 34750347758280.

The previous prime is 52916764420859. The next prime is 52916764420931. The reversal of 52916764420881 is 18802446761925.

It is a happy number.

The square root of 52916764420881 is 7274391.

It is a perfect power (a square), and thus also a powerful number.

52916764420881 is a `hidden beast` number, since 5 + 2 + 91 + 67 + 64 + 420 + 8 + 8 + 1 = 666.

It is not a de Polignac number, because 52916764420881 - 2³⁹ = 52367008606993 is a prime.

It is a super-2 number, since 2×52916764420881² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52916764400881) 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 26 ways as a sum of consecutive naturals, for example, 1462134496 + ... + 1462170686.

Almost surely, 2^{52916764420881} is an apocalyptic number.

52916764420881 is the 7274391-st square number.

52916764420881 is the 3637196-th centered octagonal number.

It is an amenable number.

52916764420881 is a deficient number, since it is larger than the sum of its proper divisors (24678559032312).

52916764420881 is an frugal number, since it uses more digits than its factorization.

52916764420881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72522 (or 36261 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 52916764420881 in words is "fifty-two trillion, nine hundred sixteen billion, seven hundred sixty-four million, four hundred twenty thousand, eight hundred eighty-one".