51630365064563 has 8 divisors (see below), whose sum is σ = 55504087864320. Its totient is φ = 47872275781320.

The previous prime is 51630365064559. The next prime is 51630365064581. The reversal of 51630365064563 is 36546056303615.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 51630365064563 - 2² = 51630365064559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51630365064163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28908378203 + ... + 28908379988.

It is an arithmetic number, because the mean of its divisors is an integer number (6938010983040).

Almost surely, 2^{51630365064563} is an apocalyptic number.

51630365064563 is a deficient number, since it is larger than the sum of its proper divisors (3873722799757).

51630365064563 is a wasteful number, since it uses less digits than its factorization.

51630365064563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57816758257.

The product of its (nonzero) digits is 17496000, while the sum is 53.

The spelling of 51630365064563 in words is "fifty-one trillion, six hundred thirty billion, three hundred sixty-five million, sixty-four thousand, five hundred sixty-three".