55877057 has 4 divisors (see below), whose sum is σ = 55900500. Its totient is φ = 55853616.

The previous prime is 55877033. The next prime is 55877069. The reversal of 55877057 is 75077855.

55877057 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 can be written as a sum of positive squares in 2 ways, for example, as 9759376 + 46117681 = 3124^2 + 6791^2 .

It is a cyclic number.

It is not a de Polignac number, because 55877057 - 2⁸ = 55876801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55876999 and 55877017.

It is not an unprimeable number, because it can be changed into a prime (55873057) 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 3 ways as a sum of consecutive naturals, for example, 7682 + ... + 13067.

It is an arithmetic number, because the mean of its divisors is an integer number (13975125).

Almost surely, 2^55877057 is an apocalyptic number.

It is an amenable number.

55877057 is a deficient number, since it is larger than the sum of its proper divisors (23443).

55877057 is a wasteful number, since it uses less digits than its factorization.

55877057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23442.

The product of its (nonzero) digits is 343000, while the sum is 44.

The square root of 55877057 is about 7475.0957853395. The cubic root of 55877057 is about 382.3060534410.

The spelling of 55877057 in words is "fifty-five million, eight hundred seventy-seven thousand, fifty-seven".