3312815725 has 12 divisors (see below), whose sum is σ = 4249543860. Its totient is φ = 2558864000.

The previous prime is 3312815663. The next prime is 3312815729. The reversal of 3312815725 is 5275182133.

It can be written as a sum of positive squares in 6 ways, for example, as 448211241 + 2864604484 = 21171^2 + 53522^2 .

It is not a de Polignac number, because 3312815725 - 2¹¹ = 3312813677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3312815729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2283976 + ... + 2285425.

It is an arithmetic number, because the mean of its divisors is an integer number (354128655).

Almost surely, 2^3312815725 is an apocalyptic number.

It is an amenable number.

3312815725 is a deficient number, since it is larger than the sum of its proper divisors (936728135).

3312815725 is a wasteful number, since it uses less digits than its factorization.

3312815725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569440 (or 4569435 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 3312815725 is about 57557.0649442794. The cubic root of 3312815725 is about 1490.7303485237.

Adding to 3312815725 its reverse (5275182133), we get a palindrome (8587997858).

The spelling of 3312815725 in words is "three billion, three hundred twelve million, eight hundred fifteen thousand, seven hundred twenty-five".