55045850 has 24 divisors (see below), whose sum is σ = 107775840. Its totient is φ = 20859120.

The previous prime is 55045817. The next prime is 55045867. The reversal of 55045850 is 5854055.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28022 + ... + 29921.

It is an arithmetic number, because the mean of its divisors is an integer number (4490660).

Almost surely, 2^55045850 is an apocalyptic number.

55045850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55045850 is a deficient number, since it is larger than the sum of its proper divisors (52729990).

55045850 is a wasteful number, since it uses less digits than its factorization.

55045850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57974 (or 57969 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 55045850 is about 7419.2890494979. The cubic root of 55045850 is about 380.4008927066.

The spelling of 55045850 in words is "fifty-five million, forty-five thousand, eight hundred fifty".