55677845 has 18 divisors (see below), whose sum is σ = 69240246. Its totient is φ = 42980560.

The previous prime is 55677823. The next prime is 55677851. The reversal of 55677845 is 54877655.

55677845 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., 44542276 + 11135569 = 6674^2 + 3337^2 .

It is not a de Polignac number, because 55677845 - 2⁶ = 55677781 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55677845.

It is a congruent 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 17 ways as a sum of consecutive naturals, for example, 784160 + ... + 784230.

Almost surely, 2^55677845 is an apocalyptic number.

It is an amenable number.

55677845 is a deficient number, since it is larger than the sum of its proper divisors (13562401).

55677845 is an frugal number, since it uses more digits than its factorization.

55677845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 123 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 47.

The square root of 55677845 is about 7461.7588409168. The cubic root of 55677845 is about 381.8511819464.

The spelling of 55677845 in words is "fifty-five million, six hundred seventy-seven thousand, eight hundred forty-five".