75075307 has 2 divisors, whose sum is σ = 75075308. Its totient is φ = 75075306.

The previous prime is 75075271. The next prime is 75075313. The reversal of 75075307 is 70357057.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75075307 is a prime.

It is a super-2 number, since 2×75075307² = 11272603442288498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75075347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37537653 + 37537654.

It is an arithmetic number, because the mean of its divisors is an integer number (37537654).

Almost surely, 2^75075307 is an apocalyptic number.

75075307 is a deficient number, since it is larger than the sum of its proper divisors (1).

75075307 is an equidigital number, since it uses as much as digits as its factorization.

75075307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25725, while the sum is 34.

The square root of 75075307 is about 8664.6007986519. The cubic root of 75075307 is about 421.8574329548.

The spelling of 75075307 in words is "seventy-five million, seventy-five thousand, three hundred seven".