6490553 has 4 divisors (see below), whose sum is σ = 6507300. Its totient is φ = 6473808.

The previous prime is 6490543. The next prime is 6490567. The reversal of 6490553 is 3550946.

It is a happy number.

6490553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2601769 + 3888784 = 1613^2 + 1972^2 .

It is a cyclic number.

It is not a de Polignac number, because 6490553 - 2²⁰ = 5441977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6490543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7778 + ... + 8571.

It is an arithmetic number, because the mean of its divisors is an integer number (1626825).

Almost surely, 2^6490553 is an apocalyptic number.

It is an amenable number.

6490553 is a deficient number, since it is larger than the sum of its proper divisors (16747).

6490553 is a wasteful number, since it uses less digits than its factorization.

6490553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16746.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 6490553 is about 2547.6563740034. The cubic root of 6490553 is about 186.5351010990.

The spelling of 6490553 in words is "six million, four hundred ninety thousand, five hundred fifty-three".