51295246063 has 4 divisors (see below), whose sum is σ = 51298329040. Its totient is φ = 51292163088.

The previous prime is 51295245929. The next prime is 51295246073. The reversal of 51295246063 is 36064259215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51295246063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51295246073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516395 + ... + 1549852.

It is an arithmetic number, because the mean of its divisors is an integer number (12824582260).

Almost surely, 2^51295246063 is an apocalyptic number.

51295246063 is a deficient number, since it is larger than the sum of its proper divisors (3082977).

51295246063 is a wasteful number, since it uses less digits than its factorization.

51295246063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082976.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 51295246063 in words is "fifty-one billion, two hundred ninety-five million, two hundred forty-six thousand, sixty-three".