82558965553 has 2 divisors, whose sum is σ = 82558965554. Its totient is φ = 82558965552.

The previous prime is 82558965551. The next prime is 82558965571. The reversal of 82558965553 is 35556985528.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80129757184 + 2429208369 = 283072^2 + 49287^2 .

It is a cyclic number.

It is not a de Polignac number, because 82558965553 - 2¹ = 82558965551 is a prime.

Together with 82558965551, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 82558965491 and 82558965500.

It is not a weakly prime, because it can be changed into another prime (82558965551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41279482776 + 41279482777.

It is an arithmetic number, because the mean of its divisors is an integer number (41279482777).

Almost surely, 2^82558965553 is an apocalyptic number.

It is an amenable number.

82558965553 is a deficient number, since it is larger than the sum of its proper divisors (1).

82558965553 is an equidigital number, since it uses as much as digits as its factorization.

82558965553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800000, while the sum is 61.

The spelling of 82558965553 in words is "eighty-two billion, five hundred fifty-eight million, nine hundred sixty-five thousand, five hundred fifty-three".