55446818 has 16 divisors (see below), whose sum is σ = 95411520. Its totient is φ = 23672976.

The previous prime is 55446779. The next prime is 55446821. The reversal of 55446818 is 81864455.

It is an unprimeable number.

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, 3596 + ... + 11127.

It is an arithmetic number, because the mean of its divisors is an integer number (5963220).

Almost surely, 2^55446818 is an apocalyptic number.

55446818 is a deficient number, since it is larger than the sum of its proper divisors (39964702).

55446818 is a wasteful number, since it uses less digits than its factorization.

55446818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15001.

The product of its digits is 153600, while the sum is 41.

The square root of 55446818 is about 7446.2620152665. The cubic root of 55446818 is about 381.3223047313.

The spelling of 55446818 in words is "fifty-five million, four hundred forty-six thousand, eight hundred eighteen".