55608142 has 4 divisors (see below), whose sum is σ = 83412216. Its totient is φ = 27804070.

The previous prime is 55608127. The next prime is 55608143. The reversal of 55608142 is 24180655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24180655 = 5 ⋅4836131.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55608143) 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 as a sum of consecutive naturals, namely, 13902034 + ... + 13902037.

It is an arithmetic number, because the mean of its divisors is an integer number (20853054).

Almost surely, 2^55608142 is an apocalyptic number.

55608142 is a deficient number, since it is larger than the sum of its proper divisors (27804074).

55608142 is a wasteful number, since it uses less digits than its factorization.

55608142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27804073.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 55608142 is about 7457.0866965592. The cubic root of 55608142 is about 381.6917691220.

Adding to 55608142 its reverse (24180655), we get a palindrome (79788797).

The spelling of 55608142 in words is "fifty-five million, six hundred eight thousand, one hundred forty-two".