51132484957 has 2 divisors, whose sum is σ = 51132484958. Its totient is φ = 51132484956.

The previous prime is 51132484943. The next prime is 51132485081. The reversal of 51132484957 is 75948423115.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45051760516 + 6080724441 = 212254^2 + 77979^2 .

It is a cyclic number.

It is not a de Polignac number, because 51132484957 - 2¹⁹ = 51131960669 is a prime.

It is a super-2 number, since 2×51132484957² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51132484957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51132484057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25566242478 + 25566242479.

It is an arithmetic number, because the mean of its divisors is an integer number (25566242479).

Almost surely, 2^51132484957 is an apocalyptic number.

It is an amenable number.

51132484957 is a deficient number, since it is larger than the sum of its proper divisors (1).

51132484957 is an equidigital number, since it uses as much as digits as its factorization.

51132484957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 49.

The spelling of 51132484957 in words is "fifty-one billion, one hundred thirty-two million, four hundred eighty-four thousand, nine hundred fifty-seven".