6520325 has 48 divisors (see below), whose sum is σ = 10177920. Its totient is φ = 4043520.

The previous prime is 6520321. The next prime is 6520343. The reversal of 6520325 is 5230256.

It is a happy number.

It is not a de Polignac number, because 6520325 - 2² = 6520321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6520325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122999 + ... + 123051.

It is an arithmetic number, because the mean of its divisors is an integer number (212040).

Almost surely, 2^6520325 is an apocalyptic number.

It is an amenable number.

6520325 is a deficient number, since it is larger than the sum of its proper divisors (3657595).

6520325 is a wasteful number, since it uses less digits than its factorization.

6520325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 6520325 is about 2553.4927060793. The cubic root of 6520325 is about 186.8198766959.

It can be divided in two parts, 65 and 20325, that multiplied together give a triangular number (1321125 = T₁₆₂₅).

The spelling of 6520325 in words is "six million, five hundred twenty thousand, three hundred twenty-five".