75532231 has 2 divisors, whose sum is σ = 75532232. Its totient is φ = 75532230.

The previous prime is 75532199. The next prime is 75532267. The reversal of 75532231 is 13223557.

It is a weak prime.

It is an emirp because it is prime and its reverse (13223557) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75532231 - 2⁵ = 75532199 is a prime.

It is a super-2 number, since 2×75532231² = 11410235839674722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75532231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75532271) 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, 37766115 + 37766116.

It is an arithmetic number, because the mean of its divisors is an integer number (37766116).

Almost surely, 2^75532231 is an apocalyptic number.

75532231 is a deficient number, since it is larger than the sum of its proper divisors (1).

75532231 is an equidigital number, since it uses as much as digits as its factorization.

75532231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 28.

The square root of 75532231 is about 8690.9280862288. The cubic root of 75532231 is about 422.7115400179.

Adding to 75532231 its reverse (13223557), we get a palindrome (88755788).

The spelling of 75532231 in words is "seventy-five million, five hundred thirty-two thousand, two hundred thirty-one".