6506445 has 32 divisors (see below), whose sum is σ = 11612160. Its totient is φ = 3083840.

The previous prime is 6506441. The next prime is 6506473. The reversal of 6506445 is 5446056.

It is not a de Polignac number, because 6506445 - 2² = 6506441 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6506441) 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 31 ways as a sum of consecutive naturals, for example, 7336 + ... + 8174.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

Almost surely, 2^6506445 is an apocalyptic number.

It is an amenable number.

6506445 is a deficient number, since it is larger than the sum of its proper divisors (5105715).

6506445 is a wasteful number, since it uses less digits than its factorization.

6506445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 6506445 is about 2550.7734121243. The cubic root of 6506445 is about 186.6872196048.

The spelling of 6506445 in words is "six million, five hundred six thousand, four hundred forty-five".