6545457 has 6 divisors (see below), whose sum is σ = 9454562. Its totient is φ = 4363632.

The previous prime is 6545437. The next prime is 6545467. The reversal of 6545457 is 7545456.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6533136 + 12321 = 2556^2 + 111^2 .

It is not a de Polignac number, because 6545457 - 2¹⁴ = 6529073 is a prime.

It is a Duffinian number.

6545457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6545437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 363628 + ... + 363645.

Almost surely, 2^6545457 is an apocalyptic number.

It is an amenable number.

6545457 is a deficient number, since it is larger than the sum of its proper divisors (2909105).

6545457 is a wasteful number, since it uses less digits than its factorization.

6545457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727279 (or 727276 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 6545457 is about 2558.4090759689. The cubic root of 6545457 is about 187.0595957116.

Subtracting 6545457 from its reverse (7545456), we obtain a palindrome (999999).

The spelling of 6545457 in words is "six million, five hundred forty-five thousand, four hundred fifty-seven".