55513857982 has 16 divisors (see below), whose sum is σ = 90867597552. Its totient is φ = 25226144320.

The previous prime is 55513857967. The next prime is 55513857991. The reversal of 55513857982 is 28975831555.

It is a super-2 number, since 2×55513857982² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 294583 + ... + 444754.

It is an arithmetic number, because the mean of its divisors is an integer number (5679224847).

Almost surely, 2^55513857982 is an apocalyptic number.

55513857982 is a deficient number, since it is larger than the sum of its proper divisors (35353739570).

55513857982 is a wasteful number, since it uses less digits than its factorization.

55513857982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742763.

The product of its digits is 15120000, while the sum is 58.

The spelling of 55513857982 in words is "fifty-five billion, five hundred thirteen million, eight hundred fifty-seven thousand, nine hundred eighty-two".