2521057205 has 16 divisors (see below), whose sum is σ = 3107545344. Its totient is φ = 1962492480.

The previous prime is 2521057183. The next prime is 2521057207. The reversal of 2521057205 is 5027501252.

It is not a de Polignac number, because 2521057205 - 2⁸ = 2521056949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521057207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9650 + ... + 71660.

It is an arithmetic number, because the mean of its divisors is an integer number (194221584).

Almost surely, 2^2521057205 is an apocalyptic number.

It is an amenable number.

2521057205 is a deficient number, since it is larger than the sum of its proper divisors (586488139).

2521057205 is a wasteful number, since it uses less digits than its factorization.

2521057205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62236.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 2521057205 is about 50210.1305017225. The cubic root of 2521057205 is about 1361.0086960614.

Adding to 2521057205 its reverse (5027501252), we get a palindrome (7548558457).

The spelling of 2521057205 in words is "two billion, five hundred twenty-one million, fifty-seven thousand, two hundred five".