51132521353 has 2 divisors, whose sum is σ = 51132521354. Its totient is φ = 51132521352.

The previous prime is 51132521333. The next prime is 51132521417. The reversal of 51132521353 is 35312523115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51009577609 + 122943744 = 225853^2 + 11088^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51132521353 is a prime.

It is a super-2 number, since 2×51132521353² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51132521303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25566260676 + 25566260677.

It is an arithmetic number, because the mean of its divisors is an integer number (25566260677).

Almost surely, 2^51132521353 is an apocalyptic number.

It is an amenable number.

51132521353 is a deficient number, since it is larger than the sum of its proper divisors (1).

51132521353 is an equidigital number, since it uses as much as digits as its factorization.

51132521353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13500, while the sum is 31.

The spelling of 51132521353 in words is "fifty-one billion, one hundred thirty-two million, five hundred twenty-one thousand, three hundred fifty-three".