51357595604957 has 2 divisors, whose sum is σ = 51357595604958. Its totient is φ = 51357595604956.

The previous prime is 51357595604879. The next prime is 51357595604969. The reversal of 51357595604957 is 75940659575315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46552933266841 + 4804662338116 = 6822971^2 + 2191954^2 .

It is a cyclic number.

It is not a de Polignac number, because 51357595604957 - 2²⁸ = 51357327169501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51357595601957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25678797802478 + 25678797802479.

It is an arithmetic number, because the mean of its divisors is an integer number (25678797802479).

Almost surely, 2^{51357595604957} is an apocalyptic number.

It is an amenable number.

51357595604957 is a deficient number, since it is larger than the sum of its proper divisors (1).

51357595604957 is an equidigital number, since it uses as much as digits as its factorization.

51357595604957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 893025000, while the sum is 71.

The spelling of 51357595604957 in words is "fifty-one trillion, three hundred fifty-seven billion, five hundred ninety-five million, six hundred four thousand, nine hundred fifty-seven".