42250073 has 2 divisors, whose sum is σ = 42250074. Its totient is φ = 42250072.

The previous prime is 42250067. The next prime is 42250093. The reversal of 42250073 is 37005224.

42250073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39400729 + 2849344 = 6277^2 + 1688^2 .

It is a cyclic number.

It is not a de Polignac number, because 42250073 - 2⁶ = 42250009 is a prime.

It is not a weakly prime, because it can be changed into another prime (42250093) 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 as a sum of consecutive naturals, namely, 21125036 + 21125037.

It is an arithmetic number, because the mean of its divisors is an integer number (21125037).

Almost surely, 2^42250073 is an apocalyptic number.

It is an amenable number.

42250073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42250073 is an equidigital number, since it uses as much as digits as its factorization.

42250073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 42250073 is about 6500.0056153822. The cubic root of 42250073 is about 348.2911889876.

Adding to 42250073 its reverse (37005224), we get a palindrome (79255297).

The spelling of 42250073 in words is "forty-two million, two hundred fifty thousand, seventy-three".