6491053 has 4 divisors (see below), whose sum is σ = 6497500. Its totient is φ = 6484608.

The previous prime is 6491047. The next prime is 6491081. The reversal of 6491053 is 3501946.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2812329 + 3678724 = 1677^2 + 1918^2 .

It is a cyclic number.

It is not a de Polignac number, because 6491053 - 2¹⁷ = 6359981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6491153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350 + ... + 3847.

It is an arithmetic number, because the mean of its divisors is an integer number (1624375).

Almost surely, 2^6491053 is an apocalyptic number.

It is an amenable number.

6491053 is a deficient number, since it is larger than the sum of its proper divisors (6447).

6491053 is a wasteful number, since it uses less digits than its factorization.

6491053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 6491053 is about 2547.7545015170. The cubic root of 6491053 is about 186.5398908889.

Adding to 6491053 its reverse (3501946), we get a palindrome (9992999).

The spelling of 6491053 in words is "six million, four hundred ninety-one thousand, fifty-three".