2040055481 has 2 divisors, whose sum is σ = 2040055482. Its totient is φ = 2040055480.

The previous prime is 2040055453. The next prime is 2040055531. The reversal of 2040055481 is 1845500402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1926419881 + 113635600 = 43891^2 + 10660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040055481 is a prime.

It is a super-2 number, since 2×2040055481² = 8323652731116282722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2040052481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020027740 + 1020027741.

It is an arithmetic number, because the mean of its divisors is an integer number (1020027741).

Almost surely, 2^2040055481 is an apocalyptic number.

It is an amenable number.

2040055481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040055481 is an equidigital number, since it uses as much as digits as its factorization.

2040055481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 2040055481 is about 45166.9733433623. The cubic root of 2040055481 is about 1268.2766384594.

Adding to 2040055481 its reverse (1845500402), we get a palindrome (3885555883).

The spelling of 2040055481 in words is "two billion, forty million, fifty-five thousand, four hundred eighty-one".