2516020625 has 10 divisors (see below), whose sum is σ = 3144020154. Its totient is φ = 2012816000.

The previous prime is 2516020607. The next prime is 2516020631. The reversal of 2516020625 is 5260206152.

It can be written as a sum of positive squares in 5 ways, for example, as 1127414929 + 1388605696 = 33577^2 + 37264^2 .

It is not a de Polignac number, because 2516020625 - 2¹⁴ = 2516004241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 2012192 + ... + 2013441.

Almost surely, 2^2516020625 is an apocalyptic number.

2516020625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2516020625 is a deficient number, since it is larger than the sum of its proper divisors (627999529).

2516020625 is an frugal number, since it uses more digits than its factorization.

2516020625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025653 (or 4025638 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2516020625 is about 50159.9504086677. The cubic root of 2516020625 is about 1360.1017486231.

Adding to 2516020625 its reverse (5260206152), we get a palindrome (7776226777).

The spelling of 2516020625 in words is "two billion, five hundred sixteen million, twenty thousand, six hundred twenty-five".