2520353513 has 4 divisors (see below), whose sum is σ = 2668609620. Its totient is φ = 2372097408.

The previous prime is 2520353509. The next prime is 2520353551. The reversal of 2520353513 is 3153530252.

2520353513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1657874089 + 862479424 = 40717^2 + 29368^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520353513 - 2² = 2520353509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520353503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74128028 + ... + 74128061.

It is an arithmetic number, because the mean of its divisors is an integer number (667152405).

Almost surely, 2^2520353513 is an apocalyptic number.

It is an amenable number.

2520353513 is a deficient number, since it is larger than the sum of its proper divisors (148256107).

2520353513 is a wasteful number, since it uses less digits than its factorization.

2520353513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148256106.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 2520353513 is about 50203.1225423280. The cubic root of 2520353513 is about 1360.8820534168.

Adding to 2520353513 its reverse (3153530252), we get a palindrome (5673883765).

The spelling of 2520353513 in words is "two billion, five hundred twenty million, three hundred fifty-three thousand, five hundred thirteen".