245530305 has 16 divisors (see below), whose sum is σ = 436498560. Its totient is φ = 130949424.

The previous prime is 245530297. The next prime is 245530319. The reversal of 245530305 is 503035542.

It is not a de Polignac number, because 245530305 - 2³ = 245530297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909237 + ... + 909506.

It is an arithmetic number, because the mean of its divisors is an integer number (27281160).

Almost surely, 2^245530305 is an apocalyptic number.

It is an amenable number.

245530305 is a deficient number, since it is larger than the sum of its proper divisors (190968255).

245530305 is a wasteful number, since it uses less digits than its factorization.

245530305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818757 (or 1818751 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 245530305 is about 15669.4066575605. The cubic root of 245530305 is about 626.1836173317.

Adding to 245530305 its reverse (503035542), we get a palindrome (748565847).

The spelling of 245530305 in words is "two hundred forty-five million, five hundred thirty thousand, three hundred five".