55777105 has 4 divisors (see below), whose sum is σ = 66932532. Its totient is φ = 44621680.

The previous prime is 55777087. The next prime is 55777123. The reversal of 55777105 is 50177755.

55777105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55777087) and next prime (55777123).

It can be written as a sum of positive squares in 2 ways, for example, as 8456464 + 47320641 = 2908^2 + 6879^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55777105 is a prime.

It is a super-2 number, since 2×55777105² = 6222170884362050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5577706 + ... + 5577715.

It is an arithmetic number, because the mean of its divisors is an integer number (16733133).

Almost surely, 2^55777105 is an apocalyptic number.

It is an amenable number.

55777105 is a deficient number, since it is larger than the sum of its proper divisors (11155427).

55777105 is a wasteful number, since it uses less digits than its factorization.

55777105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11155426.

The product of its (nonzero) digits is 42875, while the sum is 37.

The square root of 55777105 is about 7468.4071260209. The cubic root of 55777105 is about 382.0779630353.

It can be divided in two parts, 55777 and 105, that multiplied together give a palindrome (5856585).

The spelling of 55777105 in words is "fifty-five million, seven hundred seventy-seven thousand, one hundred five".