2516222525 has 6 divisors (see below), whose sum is σ = 3120115962. Its totient is φ = 2012978000.

The previous prime is 2516222519. The next prime is 2516222543. The reversal of 2516222525 is 5252226152.

It can be written as a sum of positive squares in 3 ways, for example, as 679071481 + 1837151044 = 26059^2 + 42862^2 .

It is not a de Polignac number, because 2516222525 - 2⁶ = 2516222461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2516222491 and 2516222500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50324426 + ... + 50324475.

It is an arithmetic number, because the mean of its divisors is an integer number (520019327).

Almost surely, 2^2516222525 is an apocalyptic number.

2516222525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2516222525 is a deficient number, since it is larger than the sum of its proper divisors (603893437).

2516222525 is a wasteful number, since it uses less digits than its factorization.

2516222525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100648911 (or 100648906 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 2516222525 is about 50161.9629300928. The cubic root of 2516222525 is about 1360.1381284518.

Adding to 2516222525 its reverse (5252226152), we get a palindrome (7768448677).

The spelling of 2516222525 in words is "two billion, five hundred sixteen million, two hundred twenty-two thousand, five hundred twenty-five".