53559821859847 has 2 divisors, whose sum is σ = 53559821859848. Its totient is φ = 53559821859846.

The previous prime is 53559821859809. The next prime is 53559821859931. The reversal of 53559821859847 is 74895812895535.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53559821859847 - 2²⁷ = 53559687642119 is a prime.

It is a super-2 number, since 2×53559821859847² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53559821857847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26779910929923 + 26779910929924.

It is an arithmetic number, because the mean of its divisors is an integer number (26779910929924).

Almost surely, 2^{53559821859847} is an apocalyptic number.

53559821859847 is a deficient number, since it is larger than the sum of its proper divisors (1).

53559821859847 is an equidigital number, since it uses as much as digits as its factorization.

53559821859847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560000, while the sum is 79.

The spelling of 53559821859847 in words is "fifty-three trillion, five hundred fifty-nine billion, eight hundred twenty-one million, eight hundred fifty-nine thousand, eight hundred forty-seven".