51158755522547 has 8 divisors (see below), whose sum is σ = 51293188846080. Its totient is φ = 51024395049480.

The previous prime is 51158755522421. The next prime is 51158755522591. The reversal of 51158755522547 is 74522555785115.

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 51158755522547 - 2⁴⁰ = 50059243894771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51158755522547.

It is not an unprimeable number, because it can be changed into a prime (51158755522597) 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, 16806143 + ... + 19615400.

It is an arithmetic number, because the mean of its divisors is an integer number (6411648605760).

Almost surely, 2^{51158755522547} is an apocalyptic number.

51158755522547 is a deficient number, since it is larger than the sum of its proper divisors (134433323533).

51158755522547 is a wasteful number, since it uses less digits than its factorization.

51158755522547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36425233.

The product of its digits is 98000000, while the sum is 62.

The spelling of 51158755522547 in words is "fifty-one trillion, one hundred fifty-eight billion, seven hundred fifty-five million, five hundred twenty-two thousand, five hundred forty-seven".