42142055 has 16 divisors (see below), whose sum is σ = 52049088. Its totient is φ = 32736000.

The previous prime is 42142027. The next prime is 42142069. The reversal of 42142055 is 55024124.

It is a happy number.

It is not a de Polignac number, because 42142055 - 2⁶ = 42141991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42142055.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 63425 + ... + 64085.

It is an arithmetic number, because the mean of its divisors is an integer number (3253068).

Almost surely, 2^42142055 is an apocalyptic number.

42142055 is a deficient number, since it is larger than the sum of its proper divisors (9907033).

42142055 is a wasteful number, since it uses less digits than its factorization.

42142055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 42142055 is about 6491.6912280237. The cubic root of 42142055 is about 347.9941179038.

Adding to 42142055 its reverse (55024124), we get a palindrome (97166179).

The spelling of 42142055 in words is "forty-two million, one hundred forty-two thousand, fifty-five".