42000053 has 4 divisors (see below), whose sum is σ = 42020748. Its totient is φ = 41979360.

The previous prime is 42000037. The next prime is 42000059. The reversal of 42000053 is 35000024.

42000053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17960644 + 24039409 = 4238^2 + 4903^2 .

It is a cyclic number.

It is not a de Polignac number, because 42000053 - 2⁴ = 42000037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42000059) 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 3 ways as a sum of consecutive naturals, for example, 6926 + ... + 11487.

It is an arithmetic number, because the mean of its divisors is an integer number (10505187).

Almost surely, 2^42000053 is an apocalyptic number.

It is an amenable number.

42000053 is a deficient number, since it is larger than the sum of its proper divisors (20695).

42000053 is a wasteful number, since it uses less digits than its factorization.

42000053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20694.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 42000053 is about 6480.7447874453. The cubic root of 42000053 is about 347.6028107024.

Adding to 42000053 its reverse (35000024), we get a palindrome (77000077).

The spelling of 42000053 in words is "forty-two million, fifty-three", and thus it is an aban number and an uban number.