51507662570701 has 2 divisors, whose sum is σ = 51507662570702. Its totient is φ = 51507662570700.

The previous prime is 51507662570659. The next prime is 51507662570717. The reversal of 51507662570701 is 10707526670515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30250814005476 + 21256848565225 = 5500074^2 + 4610515^2 .

It is a cyclic number.

It is not a de Polignac number, because 51507662570701 - 2¹¹ = 51507662568653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51507662570731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25753831285350 + 25753831285351.

It is an arithmetic number, because the mean of its divisors is an integer number (25753831285351).

Almost surely, 2^{51507662570701} is an apocalyptic number.

It is an amenable number.

51507662570701 is a deficient number, since it is larger than the sum of its proper divisors (1).

51507662570701 is an equidigital number, since it uses as much as digits as its factorization.

51507662570701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3087000, while the sum is 52.

The spelling of 51507662570701 in words is "fifty-one trillion, five hundred seven billion, six hundred sixty-two million, five hundred seventy thousand, seven hundred one".