6541025 has 6 divisors (see below), whose sum is σ = 8110902. Its totient is φ = 5232800.

The previous prime is 6541021. The next prime is 6541033. The reversal of 6541025 is 5201456.

It can be written as a sum of positive squares in 3 ways, for example, as 976144 + 5564881 = 988^2 + 2359^2 .

It is not a de Polignac number, because 6541025 - 2² = 6541021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6541021) 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 5 ways as a sum of consecutive naturals, for example, 130796 + ... + 130845.

It is an arithmetic number, because the mean of its divisors is an integer number (1351817).

Almost surely, 2^6541025 is an apocalyptic number.

It is an amenable number.

6541025 is a deficient number, since it is larger than the sum of its proper divisors (1569877).

6541025 is a wasteful number, since it uses less digits than its factorization.

6541025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261651 (or 261646 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 6541025 is about 2557.5427660158. The cubic root of 6541025 is about 187.0173661510.

The spelling of 6541025 in words is "six million, five hundred forty-one thousand, twenty-five".