485785481 has 2 divisors, whose sum is σ = 485785482. Its totient is φ = 485785480.

The previous prime is 485785463. The next prime is 485785493. The reversal of 485785481 is 184587584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 445589881 + 40195600 = 21109^2 + 6340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485785481 is a prime.

It is a super-2 number, since 2×485785481² = 471975067100802722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (485785451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242892740 + 242892741.

It is an arithmetic number, because the mean of its divisors is an integer number (242892741).

Almost surely, 2^485785481 is an apocalyptic number.

It is an amenable number.

485785481 is a deficient number, since it is larger than the sum of its proper divisors (1).

485785481 is an equidigital number, since it uses as much as digits as its factorization.

485785481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1433600, while the sum is 50.

The square root of 485785481 is about 22040.5417583144. The cubic root of 485785481 is about 786.1067224682.

The spelling of 485785481 in words is "four hundred eighty-five million, seven hundred eighty-five thousand, four hundred eighty-one".