6544457 has 4 divisors (see below), whose sum is σ = 6655440. Its totient is φ = 6433476.

The previous prime is 6544453. The next prime is 6544481. The reversal of 6544457 is 7544456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6544457 - 2² = 6544453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6544451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55403 + ... + 55520.

It is an arithmetic number, because the mean of its divisors is an integer number (1663860).

Almost surely, 2^6544457 is an apocalyptic number.

It is an amenable number.

6544457 is a deficient number, since it is larger than the sum of its proper divisors (110983).

6544457 is a wasteful number, since it uses less digits than its factorization.

6544457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110982.

The product of its digits is 67200, while the sum is 35.

The square root of 6544457 is about 2558.2136345505. The cubic root of 6544457 is about 187.0500690469.

Subtracting 6544457 from its reverse (7544456), we obtain a palindrome (999999).

The spelling of 6544457 in words is "six million, five hundred forty-four thousand, four hundred fifty-seven".