548872057881 has 27 divisors (see below), whose sum is σ = 922280552661. Its totient is φ = 313632285624.

The previous prime is 548872057871. The next prime is 548872057913. The reversal of 548872057881 is 188750278845.

The square root of 548872057881 is 740859.

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

548872057881 is a `hidden beast` number, since 5 + 488 + 7 + 2 + 0 + 5 + 78 + 81 = 666.

It is not a de Polignac number, because 548872057881 - 2²¹ = 548869960729 is a prime.

It is a super-2 number, since 2×548872057881² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (548872057841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15540400 + ... + 15575678.

Almost surely, 2^548872057881 is an apocalyptic number.

548872057881 is the 740859-th square number.

548872057881 is the 370430-th centered octagonal number.

It is an amenable number.

548872057881 is a deficient number, since it is larger than the sum of its proper divisors (373408494780).

548872057881 is an frugal number, since it uses more digits than its factorization.

548872057881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70578 (or 35289 counting only the distinct ones).

The product of its (nonzero) digits is 40140800, while the sum is 63.

The spelling of 548872057881 in words is "five hundred forty-eight billion, eight hundred seventy-two million, fifty-seven thousand, eight hundred eighty-one".