55424042 has 4 divisors (see below), whose sum is σ = 83136066. Its totient is φ = 27712020.

The previous prime is 55424023. The next prime is 55424059. The reversal of 55424042 is 24042455.

55424042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24042455 = 5 ⋅4808491.

It can be written as a sum of positive squares in only one way, i.e., 39175081 + 16248961 = 6259^2 + 4031^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13856009 + ... + 13856012.

Almost surely, 2^55424042 is an apocalyptic number.

55424042 is a deficient number, since it is larger than the sum of its proper divisors (27712024).

55424042 is a wasteful number, since it uses less digits than its factorization.

55424042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27712023.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 55424042 is about 7444.7325002313. The cubic root of 55424042 is about 381.2700854060.

Adding to 55424042 its reverse (24042455), we get a palindrome (79466497).

The spelling of 55424042 in words is "fifty-five million, four hundred twenty-four thousand, forty-two".