75536257 has 2 divisors, whose sum is σ = 75536258. Its totient is φ = 75536256.

The previous prime is 75536249. The next prime is 75536281. The reversal of 75536257 is 75263557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54154881 + 21381376 = 7359^2 + 4624^2 .

It is an emirp because it is prime and its reverse (75263557) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75536257 - 2³ = 75536249 is a prime.

It is a super-2 number, since 2×75536257² = 11411452243140098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75533257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37768128 + 37768129.

It is an arithmetic number, because the mean of its divisors is an integer number (37768129).

Almost surely, 2^75536257 is an apocalyptic number.

It is an amenable number.

75536257 is a deficient number, since it is larger than the sum of its proper divisors (1).

75536257 is an equidigital number, since it uses as much as digits as its factorization.

75536257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 220500, while the sum is 40.

The square root of 75536257 is about 8691.1597039751. The cubic root of 75536257 is about 422.7190503059.

The spelling of 75536257 in words is "seventy-five million, five hundred thirty-six thousand, two hundred fifty-seven".