834555521 has 2 divisors, whose sum is σ = 834555522. Its totient is φ = 834555520.

The previous prime is 834555499. The next prime is 834555539. The reversal of 834555521 is 125555438.

834555521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 700343296 + 134212225 = 26464^2 + 11585^2 .

It is a cyclic number.

It is not a de Polignac number, because 834555521 - 2¹⁴ = 834539137 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (834555541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417277760 + 417277761.

It is an arithmetic number, because the mean of its divisors is an integer number (417277761).

Almost surely, 2^834555521 is an apocalyptic number.

It is an amenable number.

834555521 is a deficient number, since it is larger than the sum of its proper divisors (1).

834555521 is an equidigital number, since it uses as much as digits as its factorization.

834555521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120000, while the sum is 38.

The square root of 834555521 is about 28888.6746148036. The cubic root of 834555521 is about 941.4958532089.

The spelling of 834555521 in words is "eight hundred thirty-four million, five hundred fifty-five thousand, five hundred twenty-one".