55542783873546 has 48 divisors (see below), whose sum is σ = 123693569615616. Its totient is φ = 18002604207168.

The previous prime is 55542783873541. The next prime is 55542783873587. The reversal of 55542783873546 is 64537838724555.

55542783873546 is a `hidden beast` number, since 5 + 5 + 5 + 4 + 2 + 7 + 8 + 3 + 8 + 73 + 546 = 666.

It is a super-2 number, since 2×55542783873546² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55542783873541) 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 23 ways as a sum of consecutive naturals, for example, 160725835 + ... + 161071038.

It is an arithmetic number, because the mean of its divisors is an integer number (2576949366992).

Almost surely, 2^{55542783873546} is an apocalyptic number.

55542783873546 is an abundant number, since it is smaller than the sum of its proper divisors (68150785742070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55542783873546 is a wasteful number, since it uses less digits than its factorization.

55542783873546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321797147 (or 321797144 counting only the distinct ones).

The product of its digits is 3386880000, while the sum is 72.

The spelling of 55542783873546 in words is "fifty-five trillion, five hundred forty-two billion, seven hundred eighty-three million, eight hundred seventy-three thousand, five hundred forty-six".