51570713 has 2 divisors, whose sum is σ = 51570714. Its totient is φ = 51570712.

The previous prime is 51570689. The next prime is 51570737. The reversal of 51570713 is 31707515.

It is a balanced prime because it is at equal distance from previous prime (51570689) and next prime (51570737).

It can be written as a sum of positive squares in only one way, i.e., 51308569 + 262144 = 7163^2 + 512^2 .

It is a cyclic number.

It is not a de Polignac number, because 51570713 - 2⁸ = 51570457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (51570913) 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, 25785356 + 25785357.

It is an arithmetic number, because the mean of its divisors is an integer number (25785357).

Almost surely, 2^51570713 is an apocalyptic number.

It is an amenable number.

51570713 is a deficient number, since it is larger than the sum of its proper divisors (1).

51570713 is an equidigital number, since it uses as much as digits as its factorization.

51570713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3675, while the sum is 29.

The square root of 51570713 is about 7181.2751653171. The cubic root of 51570713 is about 372.2211489025.

The spelling of 51570713 in words is "fifty-one million, five hundred seventy thousand, seven hundred thirteen".