6545090 has 8 divisors (see below), whose sum is σ = 11781180. Its totient is φ = 2618032.

The previous prime is 6545089. The next prime is 6545111. The reversal of 6545090 is 905456.

It can be written as a sum of positive squares in 2 ways, for example, as 6405961 + 139129 = 2531^2 + 373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 327245 + ... + 327264.

Almost surely, 2^6545090 is an apocalyptic number.

6545090 is a deficient number, since it is larger than the sum of its proper divisors (5236090).

6545090 is a wasteful number, since it uses less digits than its factorization.

6545090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654516.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 6545090 is about 2558.3373507026. The cubic root of 6545090 is about 187.0560995383.

The spelling of 6545090 in words is "six million, five hundred forty-five thousand, ninety".