3445772725 has 6 divisors (see below), whose sum is σ = 4272758210. Its totient is φ = 2756618160.

The previous prime is 3445772647. The next prime is 3445772731. The reversal of 3445772725 is 5272775443.

3445772725 is digitally balanced in base 2, because in such base 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 66210769 + 3379561956 = 8137^2 + 58134^2 .

It is not a de Polignac number, because 3445772725 - 2⁷ = 3445772597 is a prime.

It is a congruent number.

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, 68915430 + ... + 68915479.

Almost surely, 2^3445772725 is an apocalyptic number.

It is an amenable number.

3445772725 is a deficient number, since it is larger than the sum of its proper divisors (826985485).

3445772725 is a wasteful number, since it uses less digits than its factorization.

3445772725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137830919 (or 137830914 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 46.

The square root of 3445772725 is about 58700.7046380195. The cubic root of 3445772725 is about 1510.4124021589.

The spelling of 3445772725 in words is "three billion, four hundred forty-five million, seven hundred seventy-two thousand, seven hundred twenty-five".