3931057225 has 6 divisors (see below), whose sum is σ = 4874510990. Its totient is φ = 3144845760.

The previous prime is 3931057219. The next prime is 3931057241. The reversal of 3931057225 is 5227501393.

3931057225 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 29680704 + 3901376521 = 5448^2 + 62461^2 .

It is not a de Polignac number, because 3931057225 - 2¹³ = 3931049033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78621120 + ... + 78621169.

Almost surely, 2^3931057225 is an apocalyptic number.

It is an amenable number.

3931057225 is a deficient number, since it is larger than the sum of its proper divisors (943453765).

3931057225 is a wasteful number, since it uses less digits than its factorization.

3931057225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157242299 (or 157242294 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 3931057225 is about 62698.1437125534. The cubic root of 3931057225 is about 1578.2281618540.

The spelling of 3931057225 in words is "three billion, nine hundred thirty-one million, fifty-seven thousand, two hundred twenty-five".