75775061 has 2 divisors, whose sum is σ = 75775062. Its totient is φ = 75775060.

The previous prime is 75775039. The next prime is 75775079. The reversal of 75775061 is 16057757.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73856836 + 1918225 = 8594^2 + 1385^2 .

It is an emirp because it is prime and its reverse (16057757) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75775061 - 2¹⁸ = 75512917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75775361) 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, 37887530 + 37887531.

It is an arithmetic number, because the mean of its divisors is an integer number (37887531).

Almost surely, 2^75775061 is an apocalyptic number.

It is an amenable number.

75775061 is a deficient number, since it is larger than the sum of its proper divisors (1).

75775061 is an equidigital number, since it uses as much as digits as its factorization.

75775061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51450, while the sum is 38.

The square root of 75775061 is about 8704.8871905384. The cubic root of 75775061 is about 423.1640498816.

The spelling of 75775061 in words is "seventy-five million, seven hundred seventy-five thousand, sixty-one".