55213203554061 has 16 divisors (see below), whose sum is σ = 84145030041600. Its totient is φ = 31546417796208.

The previous prime is 55213203554051. The next prime is 55213203554063. The reversal of 55213203554061 is 16045530231255.

It is not a de Polignac number, because 55213203554061 - 2⁷ = 55213203553933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55213203554063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165839521 + ... + 166172118.

It is an arithmetic number, because the mean of its divisors is an integer number (5259064377600).

Almost surely, 2^{55213203554061} is an apocalyptic number.

It is an amenable number.

55213203554061 is a deficient number, since it is larger than the sum of its proper divisors (28931826487539).

55213203554061 is a wasteful number, since it uses less digits than its factorization.

55213203554061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332019568.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 55213203554061 in words is "fifty-five trillion, two hundred thirteen billion, two hundred three million, five hundred fifty-four thousand, sixty-one".