55305142 has 8 divisors (see below), whose sum is σ = 83070432. Its totient is φ = 27615000.

The previous prime is 55305139. The next prime is 55305167. The reversal of 55305142 is 24150355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16909 + ... + 19912.

It is an arithmetic number, because the mean of its divisors is an integer number (10383804).

Almost surely, 2^55305142 is an apocalyptic number.

55305142 is a deficient number, since it is larger than the sum of its proper divisors (27765290).

55305142 is a wasteful number, since it uses less digits than its factorization.

55305142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37574.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55305142 is about 7436.7427009411. The cubic root of 55305142 is about 380.9972467153.

Adding to 55305142 its reverse (24150355), we get a palindrome (79455497).

The spelling of 55305142 in words is "fifty-five million, three hundred five thousand, one hundred forty-two".