55142030 has 16 divisors (see below), whose sum is σ = 99773424. Its totient is φ = 21941760.

The previous prime is 55142023. The next prime is 55142051. The reversal of 55142030 is 3024155.

55142030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55141993 and 55142011.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 12356 + ... + 16215.

It is an arithmetic number, because the mean of its divisors is an integer number (6235839).

Almost surely, 2^55142030 is an apocalyptic number.

55142030 is a deficient number, since it is larger than the sum of its proper divisors (44631394).

55142030 is a wasteful number, since it uses less digits than its factorization.

55142030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28771.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 55142030 is about 7425.7679737519. The cubic root of 55142030 is about 380.6223182359.

Adding to 55142030 its reverse (3024155), we get a palindrome (58166185).

The spelling of 55142030 in words is "fifty-five million, one hundred forty-two thousand, thirty".