3122015625 has 63 divisors (see below), whose sum is σ = 5674985953. Its totient is φ = 1653900000.

The previous prime is 3122015623. The next prime is 3122015629. The reversal of 3122015625 is 5265102213.

It is a happy number.

The square root of 3122015625 is 55875.

It is a perfect power (a square), and thus also a powerful number.

3122015625 is a `hidden beast` number, since 3 + 1 + 2 + 20 + 15 + 625 = 666.

It can be written as a sum of positive squares in 10 ways, for example, as 1323577161 + 1798438464 = 36381^2 + 42408^2 .

It is not a de Polignac number, because 3122015625 - 2¹ = 3122015623 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3122015623) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 20953051 + ... + 20953199.

Almost surely, 2^3122015625 is an apocalyptic number.

3122015625 is the 55875-th square number.

3122015625 is the 27938-th centered octagonal number.

It is an amenable number.

3122015625 is a deficient number, since it is larger than the sum of its proper divisors (2552970328).

3122015625 is an frugal number, since it uses more digits than its factorization.

3122015625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The cubic root of 3122015625 is about 1461.5433147168.

Multiplying 3122015625 by its product of nonzero digits (3600), we get a square (11239256250000 = 3352500²).

Adding to 3122015625 its reverse (5265102213), we get a palindrome (8387117838).

The spelling of 3122015625 in words is "three billion, one hundred twenty-two million, fifteen thousand, six hundred twenty-five".