3061312225 has 6 divisors (see below), whose sum is σ = 3796027190. Its totient is φ = 2449049760.

The previous prime is 3061312223. The next prime is 3061312229. The reversal of 3061312225 is 5222131603.

It can be written as a sum of positive squares in 3 ways, for example, as 229795281 + 2831516944 = 15159^2 + 53212^2 .

It is not a de Polignac number, because 3061312225 - 2¹ = 3061312223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 122452489 = 3061312225 / (3 + 0 + 6 + 1 + 3 + 1 + 2 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3061312225.

It is not an unprimeable number, because it can be changed into a prime (3061312223) 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, 61226220 + ... + 61226269.

Almost surely, 2^3061312225 is an apocalyptic number.

It is an amenable number.

3061312225 is a deficient number, since it is larger than the sum of its proper divisors (734714965).

3061312225 is a wasteful number, since it uses less digits than its factorization.

3061312225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122452499 (or 122452494 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3061312225 is about 55329.1263711980. The cubic root of 3061312225 is about 1452.0086667882.

Adding to 3061312225 its reverse (5222131603), we get a palindrome (8283443828).

The spelling of 3061312225 in words is "three billion, sixty-one million, three hundred twelve thousand, two hundred twenty-five".