2516430625 has 20 divisors (see below), whose sum is σ = 3148620244. Its totient is φ = 2010528000.

The previous prime is 2516430617. The next prime is 2516430629. The reversal of 2516430625 is 5260346152.

It can be written as a sum of positive squares in 10 ways, for example, as 2371300416 + 145130209 = 48696^2 + 12047^2 .

It is not a de Polignac number, because 2516430625 - 2³ = 2516430617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2516430629) 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 19 ways as a sum of consecutive naturals, for example, 583477 + ... + 587773.

Almost surely, 2^2516430625 is an apocalyptic number.

2516430625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2516430625 is a deficient number, since it is larger than the sum of its proper divisors (632189619).

2516430625 is an frugal number, since it uses more digits than its factorization.

2516430625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5254 (or 5239 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2516430625 is about 50164.0371680749. The cubic root of 2516430625 is about 1360.1756234056.

Adding to 2516430625 its reverse (5260346152), we get a palindrome (7776776777).

The spelling of 2516430625 in words is "two billion, five hundred sixteen million, four hundred thirty thousand, six hundred twenty-five".