51753457165477 has 2 divisors, whose sum is σ = 51753457165478. Its totient is φ = 51753457165476.

The previous prime is 51753457165463. The next prime is 51753457165499. The reversal of 51753457165477 is 77456175435715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39110589791716 + 12642867373761 = 6253846^2 + 3555681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51753457165477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51753457163477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25876728582738 + 25876728582739.

It is an arithmetic number, because the mean of its divisors is an integer number (25876728582739).

Almost surely, 2^{51753457165477} is an apocalyptic number.

It is an amenable number.

51753457165477 is a deficient number, since it is larger than the sum of its proper divisors (1).

51753457165477 is an equidigital number, since it uses as much as digits as its factorization.

51753457165477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432180000, while the sum is 67.

The spelling of 51753457165477 in words is "fifty-one trillion, seven hundred fifty-three billion, four hundred fifty-seven million, one hundred sixty-five thousand, four hundred seventy-seven".