55789786 has 16 divisors (see below), whose sum is σ = 90280008. Its totient is φ = 25704000.

The previous prime is 55789777. The next prime is 55789787. The reversal of 55789786 is 68798755.

55789786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 55219761 + 570025 = 7431^2 + 755^2 .

It is a super-2 number, since 2×55789786² = 6225000443851592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55789787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16696 + ... + 19756.

Almost surely, 2^55789786 is an apocalyptic number.

55789786 is a deficient number, since it is larger than the sum of its proper divisors (34490222).

55789786 is a wasteful number, since it uses less digits than its factorization.

55789786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777.

The product of its digits is 4233600, while the sum is 55.

The square root of 55789786 is about 7469.2560539856. The cubic root of 55789786 is about 382.1069161545.

The spelling of 55789786 in words is "fifty-five million, seven hundred eighty-nine thousand, seven hundred eighty-six".