3155305725 has 192 divisors, whose sum is σ = 6900391680. Its totient is φ = 1393459200.

The previous prime is 3155305717. The next prime is 3155305733. The reversal of 3155305725 is 5275035513.

3155305725 is a `hidden beast` number, since 3 + 1 + 55 + 30 + 572 + 5 = 666.

3155305725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3155305717) and next prime (3155305733).

It is not a de Polignac number, because 3155305725 - 2³ = 3155305717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3155305725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 9362757 + ... + 9363093.

It is an arithmetic number, because the mean of its divisors is an integer number (35939540).

Almost surely, 2^3155305725 is an apocalyptic number.

It is an amenable number.

3155305725 is an abundant number, since it is smaller than the sum of its proper divisors (3745085955).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3155305725 is a wasteful number, since it uses less digits than its factorization.

3155305725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 3155305725 is about 56172.1080697529. The cubic root of 3155305725 is about 1466.7197786953.

The spelling of 3155305725 in words is "three billion, one hundred fifty-five million, three hundred five thousand, seven hundred twenty-five".