3161250625 has 45 divisors (see below), whose sum is σ = 4302411069. Its totient is φ = 2320968000.

The previous prime is 3161250607. The next prime is 3161250643. The reversal of 3161250625 is 5260521613.

The square root of 3161250625 is 56225.

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

It is an interprime number because it is at equal distance from previous prime (3161250607) and next prime (3161250643).

It can be written as a sum of positive squares in 22 ways, for example, as 3043397889 + 117852736 = 55167^2 + 10856^2 .

It is not a de Polignac number, because 3161250625 - 2⁷ = 3161250497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 18273039 + ... + 18273211.

Almost surely, 2^3161250625 is an apocalyptic number.

3161250625 is the 56225-th square number.

3161250625 is the 28113-rd centered octagonal number.

It is an amenable number.

3161250625 is a deficient number, since it is larger than the sum of its proper divisors (1141160444).

3161250625 is an frugal number, since it uses more digits than its factorization.

3161250625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The cubic root of 3161250625 is about 1467.6403479174.

The spelling of 3161250625 in words is "three billion, one hundred sixty-one million, two hundred fifty thousand, six hundred twenty-five".