6465553 has 8 divisors (see below), whose sum is σ = 6811200. Its totient is φ = 6125328.

The previous prime is 6465551. The next prime is 6465581. The reversal of 6465553 is 3555646.

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

It is a cyclic number.

It is not a de Polignac number, because 6465553 - 2¹ = 6465551 is a prime.

It is a Duffinian number.

6465553 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6465551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1218 + ... + 3796.

It is an arithmetic number, because the mean of its divisors is an integer number (851400).

Almost surely, 2^6465553 is an apocalyptic number.

It is an amenable number.

6465553 is a deficient number, since it is larger than the sum of its proper divisors (345647).

6465553 is a wasteful number, since it uses less digits than its factorization.

6465553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711.

The product of its digits is 54000, while the sum is 34.

The square root of 6465553 is about 2542.7451700868. The cubic root of 6465553 is about 186.2952973019.

The spelling of 6465553 in words is "six million, four hundred sixty-five thousand, five hundred fifty-three".