75051313 has 2 divisors, whose sum is σ = 75051314. Its totient is φ = 75051312.

The previous prime is 75051257. The next prime is 75051359. The reversal of 75051313 is 31315057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38291344 + 36759969 = 6188^2 + 6063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75051313 is a prime.

It is not a weakly prime, because it can be changed into another prime (75051113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37525656 + 37525657.

It is an arithmetic number, because the mean of its divisors is an integer number (37525657).

Almost surely, 2^75051313 is an apocalyptic number.

It is an amenable number.

75051313 is a deficient number, since it is larger than the sum of its proper divisors (1).

75051313 is an equidigital number, since it uses as much as digits as its factorization.

75051313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 75051313 is about 8663.2160887283. The cubic root of 75051313 is about 421.8124864153.

The spelling of 75051313 in words is "seventy-five million, fifty-one thousand, three hundred thirteen".