2405286505 has 4 divisors (see below), whose sum is σ = 2886343812. Its totient is φ = 1924229200.

The previous prime is 2405286469. The next prime is 2405286509. The reversal of 2405286505 is 5056825042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1764336016 + 640950489 = 42004^2 + 25317^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2405286505 is a prime.

It is a super-2 number, since 2×2405286505² = 11570806342270230050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2405286509) 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 in 3 ways as a sum of consecutive naturals, for example, 240528646 + ... + 240528655.

It is an arithmetic number, because the mean of its divisors is an integer number (721585953).

Almost surely, 2^2405286505 is an apocalyptic number.

It is an amenable number.

2405286505 is a deficient number, since it is larger than the sum of its proper divisors (481057307).

2405286505 is an equidigital number, since it uses as much as digits as its factorization.

2405286505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481057306.

The product of its (nonzero) digits is 96000, while the sum is 37.

The square root of 2405286505 is about 49043.7203421600. The cubic root of 2405286505 is about 1339.8482238804.

The spelling of 2405286505 in words is "two billion, four hundred five million, two hundred eighty-six thousand, five hundred five".