2505205253 has 4 divisors (see below), whose sum is σ = 2519046348. Its totient is φ = 2491364160.

The previous prime is 2505205211. The next prime is 2505205259. The reversal of 2505205253 is 3525025052.

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 401882209 + 2103323044 = 20047^2 + 45862^2 .

It is a cyclic number.

It is not a de Polignac number, because 2505205253 - 2⁶ = 2505205189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505205259) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6920276 + ... + 6920637.

It is an arithmetic number, because the mean of its divisors is an integer number (629761587).

Almost surely, 2^2505205253 is an apocalyptic number.

It is an amenable number.

2505205253 is a deficient number, since it is larger than the sum of its proper divisors (13841095).

2505205253 is a wasteful number, since it uses less digits than its factorization.

2505205253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13841094.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 2505205253 is about 50052.0254635115. The cubic root of 2505205253 is about 1358.1501040046.

The spelling of 2505205253 in words is "two billion, five hundred five million, two hundred five thousand, two hundred fifty-three".