55477868 has 12 divisors (see below), whose sum is σ = 102797352. Its totient is φ = 26107200.

The previous prime is 55477867. The next prime is 55477871. The reversal of 55477868 is 86877455.

55477868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55477861) 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, 407858 + ... + 407993.

It is an arithmetic number, because the mean of its divisors is an integer number (8566446).

Almost surely, 2^55477868 is an apocalyptic number.

It is an amenable number.

55477868 is a deficient number, since it is larger than the sum of its proper divisors (47319484).

55477868 is a wasteful number, since it uses less digits than its factorization.

55477868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815872 (or 815870 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 50.

The square root of 55477868 is about 7448.3466621795. The cubic root of 55477868 is about 381.3934711123.

The spelling of 55477868 in words is "fifty-five million, four hundred seventy-seven thousand, eight hundred sixty-eight".