6542805 has 16 divisors (see below), whose sum is σ = 10647360. Its totient is φ = 3429888.

The previous prime is 6542803. The next prime is 6542827. The reversal of 6542805 is 5082456.

It is not a de Polignac number, because 6542805 - 2¹ = 6542803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6542801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2812 + ... + 4581.

It is an arithmetic number, because the mean of its divisors is an integer number (665460).

Almost surely, 2^6542805 is an apocalyptic number.

It is an amenable number.

6542805 is a deficient number, since it is larger than the sum of its proper divisors (4104555).

6542805 is a wasteful number, since it uses less digits than its factorization.

6542805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7460.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 6542805 is about 2557.8907326154. The cubic root of 6542805 is about 187.0343288707.

The spelling of 6542805 in words is "six million, five hundred forty-two thousand, eight hundred five".