5115561047 has 2 divisors, whose sum is σ = 5115561048. Its totient is φ = 5115561046.

The previous prime is 5115561037. The next prime is 5115561049. The reversal of 5115561047 is 7401655115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5115561047 - 2¹² = 5115556951 is a prime.

Together with 5115561049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5115560998 and 5115561016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5115561049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2557780523 + 2557780524.

It is an arithmetic number, because the mean of its divisors is an integer number (2557780524).

Almost surely, 2^5115561047 is an apocalyptic number.

5115561047 is a deficient number, since it is larger than the sum of its proper divisors (1).

5115561047 is an equidigital number, since it uses as much as digits as its factorization.

5115561047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 35.

The square root of 5115561047 is about 71523.1504269771. The cubic root of 5115561047 is about 1723.0495124713.

The spelling of 5115561047 in words is "five billion, one hundred fifteen million, five hundred sixty-one thousand, forty-seven".