51093577361 has 2 divisors, whose sum is σ = 51093577362. Its totient is φ = 51093577360.

The previous prime is 51093577321. The next prime is 51093577373. The reversal of 51093577361 is 16377539015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49871375761 + 1222201600 = 223319^2 + 34960^2 .

It is a cyclic number.

It is not a de Polignac number, because 51093577361 - 2¹⁰ = 51093576337 is a prime.

It is a super-2 number, since 2×51093577361² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51093577321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25546788680 + 25546788681.

It is an arithmetic number, because the mean of its divisors is an integer number (25546788681).

Almost surely, 2^51093577361 is an apocalyptic number.

It is an amenable number.

51093577361 is a deficient number, since it is larger than the sum of its proper divisors (1).

51093577361 is an equidigital number, since it uses as much as digits as its factorization.

51093577361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 595350, while the sum is 47.

The spelling of 51093577361 in words is "fifty-one billion, ninety-three million, five hundred seventy-seven thousand, three hundred sixty-one".