42650273 has 2 divisors, whose sum is σ = 42650274. Its totient is φ = 42650272.

The previous prime is 42650261. The next prime is 42650299. The reversal of 42650273 is 37205624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27541504 + 15108769 = 5248^2 + 3887^2 .

It is a cyclic number.

It is not a de Polignac number, because 42650273 - 2²² = 38455969 is a prime.

It is not a weakly prime, because it can be changed into another prime (42650173) by changing a digit.

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 as a sum of consecutive naturals, namely, 21325136 + 21325137.

It is an arithmetic number, because the mean of its divisors is an integer number (21325137).

Almost surely, 2^42650273 is an apocalyptic number.

It is an amenable number.

42650273 is a deficient number, since it is larger than the sum of its proper divisors (1).

42650273 is an equidigital number, since it uses as much as digits as its factorization.

42650273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 42650273 is about 6530.7176481609. The cubic root of 42650273 is about 349.3874264522.

Adding to 42650273 its reverse (37205624), we get a palindrome (79855897).

The spelling of 42650273 in words is "forty-two million, six hundred fifty thousand, two hundred seventy-three".