55383730 has 16 divisors (see below), whose sum is σ = 101326104. Its totient is φ = 21790080.

The previous prime is 55383703. The next prime is 55383733. The reversal of 55383730 is 3738355.

It is a happy number.

55383730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12047841 + 43335889 = 3471^2 + 6583^2 .

It is not an unprimeable number, because it can be changed into a prime (55383733) 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, 44787 + ... + 46006.

Almost surely, 2^55383730 is an apocalyptic number.

55383730 is a deficient number, since it is larger than the sum of its proper divisors (45942374).

55383730 is a wasteful number, since it uses less digits than its factorization.

55383730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90861.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 55383730 is about 7442.0245901233. The cubic root of 55383730 is about 381.1776256060.

The spelling of 55383730 in words is "fifty-five million, three hundred eighty-three thousand, seven hundred thirty".