51452140013 has 2 divisors, whose sum is σ = 51452140014. Its totient is φ = 51452140012.

The previous prime is 51452139979. The next prime is 51452140073. The reversal of 51452140013 is 31004125415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30969664324 + 20482475689 = 175982^2 + 143117^2 .

It is a cyclic number.

It is not a de Polignac number, because 51452140013 - 2¹⁴ = 51452123629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51452140073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25726070006 + 25726070007.

It is an arithmetic number, because the mean of its divisors is an integer number (25726070007).

Almost surely, 2^51452140013 is an apocalyptic number.

It is an amenable number.

51452140013 is a deficient number, since it is larger than the sum of its proper divisors (1).

51452140013 is an equidigital number, since it uses as much as digits as its factorization.

51452140013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 51452140013 its reverse (31004125415), we get a palindrome (82456265428).

The spelling of 51452140013 in words is "fifty-one billion, four hundred fifty-two million, one hundred forty thousand, thirteen".