51912403853 has 2 divisors, whose sum is σ = 51912403854. Its totient is φ = 51912403852.

The previous prime is 51912403847. The next prime is 51912403883. The reversal of 51912403853 is 35830421915.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30556088809 + 21356315044 = 174803^2 + 146138^2 .

It is a cyclic number.

It is not a de Polignac number, because 51912403853 - 2⁶ = 51912403789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51912403853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51912403883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25956201926 + 25956201927.

It is an arithmetic number, because the mean of its divisors is an integer number (25956201927).

Almost surely, 2^51912403853 is an apocalyptic number.

It is an amenable number.

51912403853 is a deficient number, since it is larger than the sum of its proper divisors (1).

51912403853 is an equidigital number, since it uses as much as digits as its factorization.

51912403853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 51912403853 in words is "fifty-one billion, nine hundred twelve million, four hundred three thousand, eight hundred fifty-three".