55384977 has 4 divisors (see below), whose sum is σ = 73846640. Its totient is φ = 36923316.

The previous prime is 55384937. The next prime is 55384991. The reversal of 55384977 is 77948355.

55384977 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55384977 - 2⁶ = 55384913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55384937) 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, 9230827 + ... + 9230832.

It is an arithmetic number, because the mean of its divisors is an integer number (18461660).

Almost surely, 2^55384977 is an apocalyptic number.

It is an amenable number.

55384977 is a deficient number, since it is larger than the sum of its proper divisors (18461663).

55384977 is a wasteful number, since it uses less digits than its factorization.

55384977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18461662.

The product of its digits is 1058400, while the sum is 48.

The square root of 55384977 is about 7442.1083706165. The cubic root of 55384977 is about 381.1804864036.

The spelling of 55384977 in words is "fifty-five million, three hundred eighty-four thousand, nine hundred seventy-seven".