6506545 has 16 divisors (see below), whose sum is σ = 8154432. Its totient is φ = 4979520.

The previous prime is 6506491. The next prime is 6506557. The reversal of 6506545 is 5456056.

It is not a de Polignac number, because 6506545 - 2¹³ = 6498353 is a prime.

It is a Duffinian number.

6506545 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11110 + ... + 11680.

It is an arithmetic number, because the mean of its divisors is an integer number (509652).

Almost surely, 2^6506545 is an apocalyptic number.

It is an amenable number.

6506545 is a deficient number, since it is larger than the sum of its proper divisors (1647887).

6506545 is a wasteful number, since it uses less digits than its factorization.

6506545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 6506545 is about 2550.7930139468. The cubic root of 6506545 is about 186.6881760220.

The spelling of 6506545 in words is "six million, five hundred six thousand, five hundred forty-five".