51352129931 has 2 divisors, whose sum is σ = 51352129932. Its totient is φ = 51352129930.

The previous prime is 51352129849. The next prime is 51352129937. The reversal of 51352129931 is 13992125315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51352129931 - 2¹⁰ = 51352128907 is a prime.

It is a super-2 number, since 2×51352129931² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51352129937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25676064965 + 25676064966.

It is an arithmetic number, because the mean of its divisors is an integer number (25676064966).

Almost surely, 2^51352129931 is an apocalyptic number.

51352129931 is a deficient number, since it is larger than the sum of its proper divisors (1).

51352129931 is an equidigital number, since it uses as much as digits as its factorization.

51352129931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 41.

The spelling of 51352129931 in words is "fifty-one billion, three hundred fifty-two million, one hundred twenty-nine thousand, nine hundred thirty-one".