42380055 has 24 divisors (see below), whose sum is σ = 74667840. Its totient is φ = 22230720.

The previous prime is 42380029. The next prime is 42380057. The reversal of 42380055 is 55008324.

42380055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42380055 - 2⁷ = 42379927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42380057) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4975 + ... + 10464.

It is an arithmetic number, because the mean of its divisors is an integer number (3111160).

Almost surely, 2^42380055 is an apocalyptic number.

42380055 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42380055 is a deficient number, since it is larger than the sum of its proper divisors (32287785).

42380055 is a wasteful number, since it uses less digits than its factorization.

42380055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15511 (or 15508 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 42380055 is about 6509.9965437779. The cubic root of 42380055 is about 348.6479949875.

Adding to 42380055 its reverse (55008324), we get a palindrome (97388379).

The spelling of 42380055 in words is "forty-two million, three hundred eighty thousand, fifty-five".