42750211 has 4 divisors (see below), whose sum is σ = 48857392. Its totient is φ = 36643032.

The previous prime is 42750181. The next prime is 42750233. The reversal of 42750211 is 11205724.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42750211 - 2⁷ = 42750083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42750011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053580 + ... + 3053593.

It is an arithmetic number, because the mean of its divisors is an integer number (12214348).

Almost surely, 2^42750211 is an apocalyptic number.

42750211 is a deficient number, since it is larger than the sum of its proper divisors (6107181).

42750211 is an equidigital number, since it uses as much as digits as its factorization.

42750211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6107180.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 42750211 is about 6538.3645508644. The cubic root of 42750211 is about 349.6601081264.

Adding to 42750211 its reverse (11205724), we get a palindrome (53955935).

The spelling of 42750211 in words is "forty-two million, seven hundred fifty thousand, two hundred eleven".