3825556 has 24 divisors (see below), whose sum is σ = 7693056. Its totient is φ = 1630560.

The previous prime is 3825533. The next prime is 3825557. The reversal of 3825556 is 6555283.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3825557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8661 + ... + 9091.

It is an arithmetic number, because the mean of its divisors is an integer number (320544).

Almost surely, 2^3825556 is an apocalyptic number.

It is an amenable number.

3825556 is an abundant number, since it is smaller than the sum of its proper divisors (3867500).

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

3825556 is a wasteful number, since it uses less digits than its factorization.

3825556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 757 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 3825556 is about 1955.9028605736. The cubic root of 3825556 is about 156.3981174674.

The spelling of 3825556 in words is "three million, eight hundred twenty-five thousand, five hundred fifty-six".