3755556 has 54 divisors (see below), whose sum is σ = 11048310. Its totient is φ = 1072512.

The previous prime is 3755539. The next prime is 3755561. The reversal of 3755556 is 6555573.

It can be written as a sum of positive squares in only one way, i.e., 2822400 + 933156 = 1680^2 + 966^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3755556.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 700 + ... + 2828.

Almost surely, 2^3755556 is an apocalyptic number.

3755556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3755556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5524155).

3755556 is an abundant number, since it is smaller than the sum of its proper divisors (7292754).

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

3755556 is a wasteful number, since it uses less digits than its factorization.

3755556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153 (or 2141 counting only the distinct ones).

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

The square root of 3755556 is about 1937.9256951700. The cubic root of 3755556 is about 155.4383153635.

The spelling of 3755556 in words is "three million, seven hundred fifty-five thousand, five hundred fifty-six".