55277776 has 10 divisors (see below), whose sum is σ = 107100722. Its totient is φ = 27638880.

The previous prime is 55277759. The next prime is 55277777. The reversal of 55277776 is 67777255.

55277776 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 only one way, i.e., 45914176 + 9363600 = 6776^2 + 3060^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55277777) 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 as a sum of consecutive naturals, namely, 1727415 + ... + 1727446.

Almost surely, 2^55277776 is an apocalyptic number.

It is an amenable number.

55277776 is a deficient number, since it is larger than the sum of its proper divisors (51822946).

55277776 is a wasteful number, since it uses less digits than its factorization.

55277776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454869 (or 3454863 counting only the distinct ones).

The product of its digits is 720300, while the sum is 46.

The square root of 55277776 is about 7434.9025548423. The cubic root of 55277776 is about 380.9343948691.

The spelling of 55277776 in words is "fifty-five million, two hundred seventy-seven thousand, seven hundred seventy-six".