6653545 has 8 divisors (see below), whose sum is σ = 8454024. Its totient is φ = 5009664.

The previous prime is 6653533. The next prime is 6653573. The reversal of 6653545 is 5453566.

It can be written as a sum of positive squares in 4 ways, for example, as 120409 + 6533136 = 347^2 + 2556^2 .

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 6653545 - 2¹¹ = 6651497 is a prime.

It is a super-2 number, since 2×6653545² = 88539322134050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6653545.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 39054 + ... + 39223.

It is an arithmetic number, because the mean of its divisors is an integer number (1056753).

Almost surely, 2^6653545 is an apocalyptic number.

It is an amenable number.

6653545 is a deficient number, since it is larger than the sum of its proper divisors (1800479).

6653545 is a wasteful number, since it uses less digits than its factorization.

6653545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78299.

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

The square root of 6653545 is about 2579.4466460852. The cubic root of 6653545 is about 188.0836450637.

The spelling of 6653545 in words is "six million, six hundred fifty-three thousand, five hundred forty-five".