75444227 has 2 divisors, whose sum is σ = 75444228. Its totient is φ = 75444226.

The previous prime is 75444217. The next prime is 75444233. The reversal of 75444227 is 72244457.

It is a strong prime.

It is an emirp because it is prime and its reverse (72244457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75444227 - 2⁸ = 75443971 is a prime.

It is not a weakly prime, because it can be changed into another prime (75444217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37722113 + 37722114.

It is an arithmetic number, because the mean of its divisors is an integer number (37722114).

Almost surely, 2^75444227 is an apocalyptic number.

75444227 is a deficient number, since it is larger than the sum of its proper divisors (1).

75444227 is an equidigital number, since it uses as much as digits as its factorization.

75444227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62720, while the sum is 35.

The square root of 75444227 is about 8685.8636300601. The cubic root of 75444227 is about 422.5473065385.

The spelling of 75444227 in words is "seventy-five million, four hundred forty-four thousand, two hundred twenty-seven".