75228443 has 2 divisors, whose sum is σ = 75228444. Its totient is φ = 75228442.

The previous prime is 75228431. The next prime is 75228493. The reversal of 75228443 is 34482257.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75228443 - 2¹⁶ = 75162907 is a prime.

It is not a weakly prime, because it can be changed into another prime (75228403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37614221 + 37614222.

It is an arithmetic number, because the mean of its divisors is an integer number (37614222).

Almost surely, 2^75228443 is an apocalyptic number.

75228443 is a deficient number, since it is larger than the sum of its proper divisors (1).

75228443 is an equidigital number, since it uses as much as digits as its factorization.

75228443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 35.

The square root of 75228443 is about 8673.4331726255. The cubic root of 75228443 is about 422.1440681932.

The spelling of 75228443 in words is "seventy-five million, two hundred twenty-eight thousand, four hundred forty-three".