55358580861 has 24 divisors (see below), whose sum is σ = 85004343840. Its totient is φ = 34617132000.

The previous prime is 55358580773. The next prime is 55358580911. The reversal of 55358580861 is 16808585355.

It is a happy number.

55358580861 is a `hidden beast` number, since 5 + 5 + 3 + 58 + 580 + 8 + 6 + 1 = 666.

It is not a de Polignac number, because 55358580861 - 2¹⁵ = 55358548093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55358580798 and 55358580807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55358580161) 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, 1585375 + ... + 1619916.

It is an arithmetic number, because the mean of its divisors is an integer number (3541847660).

Almost surely, 2^55358580861 is an apocalyptic number.

It is an amenable number.

55358580861 is a deficient number, since it is larger than the sum of its proper divisors (29645762979).

55358580861 is a wasteful number, since it uses less digits than its factorization.

55358580861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205417 (or 3205414 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 54.

The spelling of 55358580861 in words is "fifty-five billion, three hundred fifty-eight million, five hundred eighty thousand, eight hundred sixty-one".