52537420881 has 48 divisors (see below), whose sum is σ = 86724554560. Its totient is φ = 31404542400.

The previous prime is 52537420849. The next prime is 52537420909. The reversal of 52537420881 is 18802473525.

52537420881 is a `hidden beast` number, since 525 + 3 + 7 + 42 + 0 + 8 + 81 = 666.

It is not a de Polignac number, because 52537420881 - 2⁵ = 52537420849 is a prime.

It is a super-3 number, since 3×52537420881³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52537410881) 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 47 ways as a sum of consecutive naturals, for example, 128346 + ... + 348636.

Almost surely, 2^52537420881 is an apocalyptic number.

It is an amenable number.

52537420881 is a deficient number, since it is larger than the sum of its proper divisors (34187133679).

52537420881 is a wasteful number, since it uses less digits than its factorization.

52537420881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220395 (or 220378 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 52537420881 in words is "fifty-two billion, five hundred thirty-seven million, four hundred twenty thousand, eight hundred eighty-one".