855484541 has 2 divisors, whose sum is σ = 855484542. Its totient is φ = 855484540.

The previous prime is 855484537. The next prime is 855484561. The reversal of 855484541 is 145484558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 855328516 + 156025 = 29246^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 855484541 - 2² = 855484537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 855484492 and 855484501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855484561) 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, 427742270 + 427742271.

It is an arithmetic number, because the mean of its divisors is an integer number (427742271).

Almost surely, 2^855484541 is an apocalyptic number.

It is an amenable number.

855484541 is a deficient number, since it is larger than the sum of its proper divisors (1).

855484541 is an equidigital number, since it uses as much as digits as its factorization.

855484541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512000, while the sum is 44.

The square root of 855484541 is about 29248.6673371626. The cubic root of 855484541 is about 949.3012557145.

The spelling of 855484541 in words is "eight hundred fifty-five million, four hundred eighty-four thousand, five hundred forty-one".