6506825 has 12 divisors (see below), whose sum is σ = 8689548. Its totient is φ = 4804800.

The previous prime is 6506813. The next prime is 6506881. The reversal of 6506825 is 5286056.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2226064 + 4280761 = 1492^2 + 2069^2 .

It is not a de Polignac number, because 6506825 - 2²² = 2312521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6506791 and 6506800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9686 + ... + 10335.

It is an arithmetic number, because the mean of its divisors is an integer number (724129).

Almost surely, 2^6506825 is an apocalyptic number.

6506825 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6506825 is a deficient number, since it is larger than the sum of its proper divisors (2182723).

6506825 is a wasteful number, since it uses less digits than its factorization.

6506825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20044 (or 20039 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 6506825 is about 2550.8478982487. The cubic root of 6506825 is about 186.6908539378.

The spelling of 6506825 in words is "six million, five hundred six thousand, eight hundred twenty-five".