54878866 has 24 divisors (see below), whose sum is σ = 97234560. Its totient is φ = 22755240.

The previous prime is 54878861. The next prime is 54878867. The reversal of 54878866 is 66887845.

It is not an unprimeable number, because it can be changed into a prime (54878861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11415 + ... + 15493.

It is an arithmetic number, because the mean of its divisors is an integer number (4051440).

Almost surely, 2^54878866 is an apocalyptic number.

54878866 is a deficient number, since it is larger than the sum of its proper divisors (42355694).

54878866 is a wasteful number, since it uses less digits than its factorization.

54878866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150 (or 4119 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 52.

The square root of 54878866 is about 7408.0271327797. The cubic root of 54878866 is about 380.0158488311.

The spelling of 54878866 in words is "fifty-four million, eight hundred seventy-eight thousand, eight hundred sixty-six".