6489553 has 16 divisors (see below), whose sum is σ = 7657344. Its totient is φ = 5385600.

The previous prime is 6489551. The next prime is 6489557. The reversal of 6489553 is 3559846.

It is a cyclic number.

It is not a de Polignac number, because 6489553 - 2¹ = 6489551 is a prime.

It is a super-2 number, since 2×6489553² = 84228596279618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6489551) 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, 47301 + ... + 47437.

It is an arithmetic number, because the mean of its divisors is an integer number (478584).

Almost surely, 2^6489553 is an apocalyptic number.

It is an amenable number.

6489553 is a deficient number, since it is larger than the sum of its proper divisors (1167791).

6489553 is a wasteful number, since it uses less digits than its factorization.

6489553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312.

The product of its digits is 129600, while the sum is 40.

The square root of 6489553 is about 2547.4601076366. The cubic root of 6489553 is about 186.5255207812.

It can be divided in two parts, 648 and 9553, that added together give a palindrome (10201).

The spelling of 6489553 in words is "six million, four hundred eighty-nine thousand, five hundred fifty-three".