51563345220015 has 8 divisors (see below), whose sum is σ = 82501352352048. Its totient is φ = 27500450784000.

The previous prime is 51563345220007. The next prime is 51563345220053. The reversal of 51563345220015 is 51002254336515.

51563345220015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51563345220015 - 2³ = 51563345220007 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1718778173986 + ... + 1718778174015.

It is an arithmetic number, because the mean of its divisors is an integer number (10312669044006).

Almost surely, 2^{51563345220015} is an apocalyptic number.

51563345220015 is a deficient number, since it is larger than the sum of its proper divisors (30938007132033).

51563345220015 is a wasteful number, since it uses less digits than its factorization.

51563345220015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437556348009.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 51563345220015 in words is "fifty-one trillion, five hundred sixty-three billion, three hundred forty-five million, two hundred twenty thousand, fifteen".