2505344305 has 8 divisors (see below), whose sum is σ = 3047597352. Its totient is φ = 1976819328.

The previous prime is 2505344287. The next prime is 2505344339. The reversal of 2505344305 is 5034435052.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 686492401 + 1818851904 = 26201^2 + 42648^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2505344305 - 2²⁷ = 2371126577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3431614 + ... + 3432343.

It is an arithmetic number, because the mean of its divisors is an integer number (380949669).

Almost surely, 2^2505344305 is an apocalyptic number.

It is an amenable number.

2505344305 is a deficient number, since it is larger than the sum of its proper divisors (542253047).

2505344305 is an equidigital number, since it uses as much as digits as its factorization.

2505344305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6864035.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 2505344305 is about 50053.4145188917. The cubic root of 2505344305 is about 1358.1752316854.

Adding to 2505344305 its reverse (5034435052), we get a palindrome (7539779357).

The spelling of 2505344305 in words is "two billion, five hundred five million, three hundred forty-four thousand, three hundred five".