6631325 has 24 divisors (see below), whose sum is σ = 8651232. Its totient is φ = 5037120.

The previous prime is 6631321. The next prime is 6631327. The reversal of 6631325 is 5231366.

It is not a de Polignac number, because 6631325 - 2² = 6631321 is a prime.

It is an Ulam number.

It is a Duffinian number.

Its product of digits (3240) is a multiple of the sum of its prime divisors (216).

It is a junction number, because it is equal to n+sod(n) for n = 6631294 and 6631303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61922 + ... + 62028.

It is an arithmetic number, because the mean of its divisors is an integer number (360468).

Almost surely, 2^6631325 is an apocalyptic number.

It is an amenable number.

6631325 is a deficient number, since it is larger than the sum of its proper divisors (2019907).

6631325 is a wasteful number, since it uses less digits than its factorization.

6631325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 216 counting only the distinct ones).

The product of its digits is 3240, while the sum is 26.

The square root of 6631325 is about 2575.1359187429. The cubic root of 6631325 is about 187.8740385300.

It can be divided in two parts, 663 and 1325, that multiplied together give a triangular number (878475 = T₁₃₂₅).

The spelling of 6631325 in words is "six million, six hundred thirty-one thousand, three hundred twenty-five".