3855550 has 24 divisors (see below), whose sum is σ = 7421400. Its totient is φ = 1488480.

The previous prime is 3855547. The next prime is 3855557. The reversal of 3855550 is 555583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121 + ... + 2779.

It is an arithmetic number, because the mean of its divisors is an integer number (309225).

Almost surely, 2^3855550 is an apocalyptic number.

3855550 is a deficient number, since it is larger than the sum of its proper divisors (3565850).

3855550 is a wasteful number, since it uses less digits than its factorization.

3855550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 3855550 is about 1963.5554486696. Note that the first 3 decimals coincide. The cubic root of 3855550 is about 156.8057966325.

The spelling of 3855550 in words is "three million, eight hundred fifty-five thousand, five hundred fifty".