53516573447 has 2 divisors, whose sum is σ = 53516573448. Its totient is φ = 53516573446.

The previous prime is 53516573437. The next prime is 53516573477. The reversal of 53516573447 is 74437561535.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53516573447 - 2⁴ = 53516573431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53516573395 and 53516573404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53516573437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26758286723 + 26758286724.

It is an arithmetic number, because the mean of its divisors is an integer number (26758286724).

Almost surely, 2^53516573447 is an apocalyptic number.

53516573447 is a deficient number, since it is larger than the sum of its proper divisors (1).

53516573447 is an equidigital number, since it uses as much as digits as its factorization.

53516573447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292000, while the sum is 50.

The spelling of 53516573447 in words is "fifty-three billion, five hundred sixteen million, five hundred seventy-three thousand, four hundred forty-seven".