2516225513 has 4 divisors (see below), whose sum is σ = 2602991940. Its totient is φ = 2429459088.

The previous prime is 2516225501. The next prime is 2516225521. The reversal of 2516225513 is 3155226152.

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 1839809449 + 676416064 = 42893^2 + 26008^2 .

It is a cyclic number.

It is not a de Polignac number, because 2516225513 - 2¹⁸ = 2515963369 is a prime.

It is a super-2 number, since 2×2516225513² = 12662781664544226338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2516225513.

It is not an unprimeable number, because it can be changed into a prime (2516225113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43383170 + ... + 43383227.

It is an arithmetic number, because the mean of its divisors is an integer number (650747985).

Almost surely, 2^2516225513 is an apocalyptic number.

It is an amenable number.

2516225513 is a deficient number, since it is larger than the sum of its proper divisors (86766427).

2516225513 is an equidigital number, since it uses as much as digits as its factorization.

2516225513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86766426.

The product of its digits is 18000, while the sum is 32.

The square root of 2516225513 is about 50161.9927136074. The cubic root of 2516225513 is about 1360.1386668370.

The spelling of 2516225513 in words is "two billion, five hundred sixteen million, two hundred twenty-five thousand, five hundred thirteen".