3216045425 has 6 divisors (see below), whose sum is σ = 3987896358. Its totient is φ = 2572836320.

The previous prime is 3216045421. The next prime is 3216045457. The reversal of 3216045425 is 5245406123.

It can be written as a sum of positive squares in 3 ways, for example, as 43652449 + 3172392976 = 6607^2 + 56324^2 .

It is not a de Polignac number, because 3216045425 - 2² = 3216045421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3216045391 and 3216045400.

It is not an unprimeable number, because it can be changed into a prime (3216045421) 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, 64320884 + ... + 64320933.

It is an arithmetic number, because the mean of its divisors is an integer number (664649393).

Almost surely, 2^3216045425 is an apocalyptic number.

It is an amenable number.

3216045425 is a deficient number, since it is larger than the sum of its proper divisors (771850933).

3216045425 is a wasteful number, since it uses less digits than its factorization.

3216045425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128641827 (or 128641822 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 3216045425 is about 56710.1880176746. The cubic root of 3216045425 is about 1476.0714880378.

The spelling of 3216045425 in words is "three billion, two hundred sixteen million, forty-five thousand, four hundred twenty-five".