6455545 has 12 divisors (see below), whose sum is σ = 8051940. Its totient is φ = 4962720.

The previous prime is 6455543. The next prime is 6455557. The reversal of 6455545 is 5455546.

It can be written as a sum of positive squares in 2 ways, for example, as 2849344 + 3606201 = 1688^2 + 1899^2 .

It is not a de Polignac number, because 6455545 - 2¹ = 6455543 is a prime.

It is a super-3 number, since 3×6455545³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 6455545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6455543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30490 + ... + 30700.

It is an arithmetic number, because the mean of its divisors is an integer number (670995).

Almost surely, 2^6455545 is an apocalyptic number.

It is an amenable number.

6455545 is a deficient number, since it is larger than the sum of its proper divisors (1596395).

6455545 is an equidigital number, since it uses as much as digits as its factorization.

6455545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 245 counting only the distinct ones).

The product of its digits is 60000, while the sum is 34.

The square root of 6455545 is about 2540.7764561252. The cubic root of 6455545 is about 186.1991257834.

Subtracting from 6455545 its reverse (5455546), we obtain a palindrome (999999).

The spelling of 6455545 in words is "six million, four hundred fifty-five thousand, five hundred forty-five".