6504225 has 48 divisors (see below), whose sum is σ = 13249152. Its totient is φ = 2741760.

The previous prime is 6504191. The next prime is 6504233. The reversal of 6504225 is 5224056.

It is not a de Polignac number, because 6504225 - 2⁸ = 6503969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6504195 and 6504204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6349 + ... + 7301.

It is an arithmetic number, because the mean of its divisors is an integer number (276024).

Almost surely, 2^6504225 is an apocalyptic number.

6504225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6504225 is an abundant number, since it is smaller than the sum of its proper divisors (6744927).

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

6504225 is a wasteful number, since it uses less digits than its factorization.

6504225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 6504225 is about 2550.3382128651. The cubic root of 6504225 is about 186.6659846205.

The spelling of 6504225 in words is "six million, five hundred four thousand, two hundred twenty-five".