55779330386 has 16 divisors (see below), whose sum is σ = 90144192600. Its totient is φ = 25733129088.

The previous prime is 55779330379. The next prime is 55779330421. The reversal of 55779330386 is 68303397755.

It is a happy number.

55779330386 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 45652732225 + 10126598161 = 213665^2 + 100631^2 .

It is a super-2 number, since 2×55779330386² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404531 + ... + 524598.

Almost surely, 2^55779330386 is an apocalyptic number.

55779330386 is a deficient number, since it is larger than the sum of its proper divisors (34364862214).

55779330386 is a wasteful number, since it uses less digits than its factorization.

55779330386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931453.

The product of its (nonzero) digits is 14288400, while the sum is 56.

The spelling of 55779330386 in words is "fifty-five billion, seven hundred seventy-nine million, three hundred thirty thousand, three hundred eighty-six".