55909008 has 40 divisors (see below), whose sum is σ = 160480800. Its totient is φ = 18636192.

The previous prime is 55909003. The next prime is 55909019. The reversal of 55909008 is 80090955.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55909003) 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 7 ways as a sum of consecutive naturals, for example, 64278 + ... + 65141.

It is an arithmetic number, because the mean of its divisors is an integer number (4012020).

Almost surely, 2^55909008 is an apocalyptic number.

It is an amenable number.

55909008 is an abundant number, since it is smaller than the sum of its proper divisors (104571792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55909008 is a wasteful number, since it uses less digits than its factorization.

55909008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129436 (or 129424 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 55909008 is about 7477.2326431642. The cubic root of 55909008 is about 382.3789082279.

The spelling of 55909008 in words is "fifty-five million, nine hundred nine thousand, eight".