51480200047 has 4 divisors (see below), whose sum is σ = 54189684280. Its totient is φ = 48770715816.

The previous prime is 51480199997. The next prime is 51480200063. The reversal of 51480200047 is 74000208415.

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 51480200047 - 2¹⁹ = 51479675759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51480199991 and 51480200018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51480200647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1354742088 + ... + 1354742125.

It is an arithmetic number, because the mean of its divisors is an integer number (13547421070).

Almost surely, 2^51480200047 is an apocalyptic number.

51480200047 is a deficient number, since it is larger than the sum of its proper divisors (2709484233).

51480200047 is a wasteful number, since it uses less digits than its factorization.

51480200047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709484232.

The product of its (nonzero) digits is 8960, while the sum is 31.

The spelling of 51480200047 in words is "fifty-one billion, four hundred eighty million, two hundred thousand, forty-seven".