42553073 has 2 divisors, whose sum is σ = 42553074. Its totient is φ = 42553072.

The previous prime is 42553037. The next prime is 42553079. The reversal of 42553073 is 37035524.

42553073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (42553037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39287824 + 3265249 = 6268^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 42553073 - 2⁸ = 42552817 is a prime.

It is not a weakly prime, because it can be changed into another prime (42553079) 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, 21276536 + 21276537.

It is an arithmetic number, because the mean of its divisors is an integer number (21276537).

Almost surely, 2^42553073 is an apocalyptic number.

It is an amenable number.

42553073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42553073 is an equidigital number, since it uses as much as digits as its factorization.

42553073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 42553073 is about 6523.2716484905. The cubic root of 42553073 is about 349.1218065096.

Adding to 42553073 its reverse (37035524), we get a palindrome (79588597).

The spelling of 42553073 in words is "forty-two million, five hundred fifty-three thousand, seventy-three".