2516225616 has 30 divisors (see below), whose sum is σ = 7041937370. Its totient is φ = 838741824.

The previous prime is 2516225581. The next prime is 2516225617. The reversal of 2516225616 is 6165226152.

2516225616 is a `hidden beast` number, since 2 + 5 + 16 + 2 + 25 + 616 = 666.

2516225616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2486019600 + 30206016 = 49860^2 + 5496^2 .

It is a super-2 number, since 2×2516225616² = 12662782701229158912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2516225617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8736751 + ... + 8737038.

Almost surely, 2^2516225616 is an apocalyptic number.

It is an amenable number.

2516225616 is an abundant number, since it is smaller than the sum of its proper divisors (4525711754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2516225616 is a wasteful number, since it uses less digits than its factorization.

2516225616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17473803 (or 17473794 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 2516225616 is about 50161.9937402811. The cubic root of 2516225616 is about 1360.1386853958.

The spelling of 2516225616 in words is "two billion, five hundred sixteen million, two hundred twenty-five thousand, six hundred sixteen".