3255631 has 12 divisors (see below), whose sum is σ = 3550120. Its totient is φ = 2976480.

The previous prime is 3255613. The next prime is 3255641. The reversal of 3255631 is 1365523.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-3255631 is a prime.

It is a super-2 number, since 2×3255631² = 21198266416322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

3255631 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3255596 and 3255605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3255601) 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 11 ways as a sum of consecutive naturals, for example, 53341 + ... + 53401.

Almost surely, 2^3255631 is an apocalyptic number.

3255631 is a deficient number, since it is larger than the sum of its proper divisors (294489).

3255631 is an equidigital number, since it uses as much as digits as its factorization.

3255631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 133 counting only the distinct ones).

The product of its digits is 2700, while the sum is 25.

The square root of 3255631 is about 1804.3367202382. The cubic root of 3255631 is about 148.2103018318.

The spelling of 3255631 in words is "three million, two hundred fifty-five thousand, six hundred thirty-one".