51357595605031 has 2 divisors, whose sum is σ = 51357595605032. Its totient is φ = 51357595605030.

The previous prime is 51357595604969. The next prime is 51357595605049. The reversal of 51357595605031 is 13050659575315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51357595605031 - 2⁹ = 51357595604519 is a prime.

It is a super-2 number, since 2×51357595605031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51357595605061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25678797802515 + 25678797802516.

It is an arithmetic number, because the mean of its divisors is an integer number (25678797802516).

Almost surely, 2^{51357595605031} is an apocalyptic number.

51357595605031 is a deficient number, since it is larger than the sum of its proper divisors (1).

51357595605031 is an equidigital number, since it uses as much as digits as its factorization.

51357595605031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10631250, while the sum is 55.

The spelling of 51357595605031 in words is "fifty-one trillion, three hundred fifty-seven billion, five hundred ninety-five million, six hundred five thousand, thirty-one".