2521081012 has 12 divisors (see below), whose sum is σ = 4564026180. Its totient is φ = 1217073536.

The previous prime is 2521081001. The next prime is 2521081027. The reversal of 2521081012 is 2101801252.

It can be written as a sum of positive squares in 2 ways, for example, as 1950635556 + 570445456 = 44166^2 + 23884^2 .

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 10866613 + ... + 10866844.

It is an arithmetic number, because the mean of its divisors is an integer number (380335515).

Almost surely, 2^2521081012 is an apocalyptic number.

It is an amenable number.

2521081012 is a deficient number, since it is larger than the sum of its proper divisors (2042945168).

2521081012 is a wasteful number, since it uses less digits than its factorization.

2521081012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21733490 (or 21733488 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 2521081012 is about 50210.3675748346. The cubic root of 2521081012 is about 1361.0129801678.

Adding to 2521081012 its reverse (2101801252), we get a palindrome (4622882264).

The spelling of 2521081012 in words is "two billion, five hundred twenty-one million, eighty-one thousand, twelve".