75255091 has 2 divisors, whose sum is σ = 75255092. Its totient is φ = 75255090.

The previous prime is 75255041. The next prime is 75255097. The reversal of 75255091 is 19055257.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75255091 - 2⁹ = 75254579 is a prime.

It is not a weakly prime, because it can be changed into another prime (75255097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37627545 + 37627546.

It is an arithmetic number, because the mean of its divisors is an integer number (37627546).

Almost surely, 2^75255091 is an apocalyptic number.

75255091 is a deficient number, since it is larger than the sum of its proper divisors (1).

75255091 is an equidigital number, since it uses as much as digits as its factorization.

75255091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 75255091 is about 8674.9692218474. The cubic root of 75255091 is about 422.1939073528.

The spelling of 75255091 in words is "seventy-five million, two hundred fifty-five thousand, ninety-one".