3516320825 has 6 divisors (see below), whose sum is σ = 4360237854. Its totient is φ = 2813056640.

The previous prime is 3516320809. The next prime is 3516320849. The reversal of 3516320825 is 5280236153.

3516320825 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 3 ways, for example, as 1117966096 + 2398354729 = 33436^2 + 48973^2 .

It is not a de Polignac number, because 3516320825 - 2⁴ = 3516320809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70326392 + ... + 70326441.

It is an arithmetic number, because the mean of its divisors is an integer number (726706309).

Almost surely, 2^3516320825 is an apocalyptic number.

It is an amenable number.

3516320825 is a deficient number, since it is larger than the sum of its proper divisors (843917029).

3516320825 is a wasteful number, since it uses less digits than its factorization.

3516320825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140652843 (or 140652838 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 3516320825 is about 59298.5735494540. The cubic root of 3516320825 is about 1520.6508098627.

Adding to 3516320825 its reverse (5280236153), we get a palindrome (8796556978).

The spelling of 3516320825 in words is "three billion, five hundred sixteen million, three hundred twenty thousand, eight hundred twenty-five".