75433081 has 2 divisors, whose sum is σ = 75433082. Its totient is φ = 75433080.

The previous prime is 75433049. The next prime is 75433091. The reversal of 75433081 is 18033457.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49829481 + 25603600 = 7059^2 + 5060^2 .

It is a cyclic number.

It is not a de Polignac number, because 75433081 - 2⁵ = 75433049 is a prime.

It is a super-2 number, since 2×75433081² = 11380299418305122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75433091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37716540 + 37716541.

It is an arithmetic number, because the mean of its divisors is an integer number (37716541).

Almost surely, 2^75433081 is an apocalyptic number.

It is an amenable number.

75433081 is a deficient number, since it is larger than the sum of its proper divisors (1).

75433081 is an equidigital number, since it uses as much as digits as its factorization.

75433081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 75433081 is about 8685.2219891031. The cubic root of 75433081 is about 422.5264967102.

The spelling of 75433081 in words is "seventy-five million, four hundred thirty-three thousand, eighty-one".