2620523513 has 2 divisors, whose sum is σ = 2620523514. Its totient is φ = 2620523512.

The previous prime is 2620523417. The next prime is 2620523623. The reversal of 2620523513 is 3153250262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1689785449 + 930738064 = 41107^2 + 30508^2 .

It is a cyclic number.

It is not a de Polignac number, because 2620523513 - 2¹⁶ = 2620457977 is a prime.

It is a super-2 number, since 2×2620523513² = 13734286964371722338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2620523813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310261756 + 1310261757.

It is an arithmetic number, because the mean of its divisors is an integer number (1310261757).

Almost surely, 2^2620523513 is an apocalyptic number.

It is an amenable number.

2620523513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2620523513 is an equidigital number, since it uses as much as digits as its factorization.

2620523513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 2620523513 is about 51191.0491492409. The cubic root of 2620523513 is about 1378.6774967429.

Adding to 2620523513 its reverse (3153250262), we get a palindrome (5773773775).

The spelling of 2620523513 in words is "two billion, six hundred twenty million, five hundred twenty-three thousand, five hundred thirteen".