3855000225685 has 32 divisors (see below), whose sum is σ = 5517562717440. Its totient is φ = 2529689422848.

The previous prime is 3855000225683. The next prime is 3855000225689. The reversal of 3855000225685 is 5865220005583.

It is not a de Polignac number, because 3855000225685 - 2¹ = 3855000225683 is a prime.

It is a super-2 number, since 2×3855000225685² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855000225683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16690747 + ... + 16920136.

It is an arithmetic number, because the mean of its divisors is an integer number (172423834920).

Almost surely, 2^{3855000225685} is an apocalyptic number.

3855000225685 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3855000225685 is a deficient number, since it is larger than the sum of its proper divisors (1662562491755).

3855000225685 is a wasteful number, since it uses less digits than its factorization.

3855000225685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33611037.

The product of its (nonzero) digits is 2880000, while the sum is 49.

The spelling of 3855000225685 in words is "three trillion, eight hundred fifty-five billion, two hundred twenty-five thousand, six hundred eighty-five".