3255616 has 84 divisors (see below), whose sum is σ = 8180832. Its totient is φ = 1257984.

The previous prime is 3255613. The next prime is 3255641. The reversal of 3255616 is 6165523.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3255613) 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, 75691 + ... + 75733.

Almost surely, 2^3255616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3255616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4090416).

3255616 is an abundant number, since it is smaller than the sum of its proper divisors (4925216).

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

3255616 is a wasteful number, since it uses less digits than its factorization.

3255616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 65 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 3255616 is about 1804.3325635813. The cubic root of 3255616 is about 148.2100742100.

The spelling of 3255616 in words is "three million, two hundred fifty-five thousand, six hundred sixteen".