51563545034459 has 4 divisors (see below), whose sum is σ = 51563562207360. Its totient is φ = 51563527861560.

The previous prime is 51563545034423. The next prime is 51563545034471. The reversal of 51563545034459 is 95443054536515.

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

It is a cyclic number.

It is not a de Polignac number, because 51563545034459 - 2²⁰ = 51563543985883 is a prime.

It is a super-3 number, since 3×51563545034459³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51563545034398 and 51563545034407.

It is not an unprimeable number, because it can be changed into a prime (51563545034959) 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, 2768507 + ... + 10525764.

It is an arithmetic number, because the mean of its divisors is an integer number (12890890551840).

Almost surely, 2^{51563545034459} is an apocalyptic number.

51563545034459 is a deficient number, since it is larger than the sum of its proper divisors (17172901).

51563545034459 is a wasteful number, since it uses less digits than its factorization.

51563545034459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17172900.

The product of its (nonzero) digits is 97200000, while the sum is 59.

The spelling of 51563545034459 in words is "fifty-one trillion, five hundred sixty-three billion, five hundred forty-five million, thirty-four thousand, four hundred fifty-nine".