55420808 has 32 divisors (see below), whose sum is σ = 109781760. Its totient is φ = 26187840.

The previous prime is 55420801. The next prime is 55420811. The reversal of 55420808 is 80802455.

55420808 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 (55420801) 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 7 ways as a sum of consecutive naturals, for example, 8066 + ... + 13262.

It is an arithmetic number, because the mean of its divisors is an integer number (3430680).

Almost surely, 2^55420808 is an apocalyptic number.

It is an amenable number.

55420808 is a deficient number, since it is larger than the sum of its proper divisors (54360952).

55420808 is a wasteful number, since it uses less digits than its factorization.

55420808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277 (or 5273 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 55420808 is about 7444.5152965119. The cubic root of 55420808 is about 381.2626695422.

The spelling of 55420808 in words is "fifty-five million, four hundred twenty thousand, eight hundred eight".