75275047 has 2 divisors, whose sum is σ = 75275048. Its totient is φ = 75275046.

The previous prime is 75275041. The next prime is 75275051. The reversal of 75275047 is 74057257.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75275047 - 2¹¹ = 75272999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75274997 and 75275015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75275041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37637523 + 37637524.

It is an arithmetic number, because the mean of its divisors is an integer number (37637524).

Almost surely, 2^75275047 is an apocalyptic number.

75275047 is a deficient number, since it is larger than the sum of its proper divisors (1).

75275047 is an equidigital number, since it uses as much as digits as its factorization.

75275047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 75275047 is about 8676.1193514151. The cubic root of 75275047 is about 422.2312229101.

The spelling of 75275047 in words is "seventy-five million, two hundred seventy-five thousand, forty-seven".