6542457 has 16 divisors (see below), whose sum is σ = 9105408. Its totient is φ = 4173840.

The previous prime is 6542453. The next prime is 6542461. The reversal of 6542457 is 7542456.

It is an interprime number because it is at equal distance from previous prime (6542453) and next prime (6542461).

It is not a de Polignac number, because 6542457 - 2² = 6542453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6542453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9238 + ... + 9920.

It is an arithmetic number, because the mean of its divisors is an integer number (569088).

Almost surely, 2^6542457 is an apocalyptic number.

It is an amenable number.

6542457 is a deficient number, since it is larger than the sum of its proper divisors (2562951).

6542457 is a wasteful number, since it uses less digits than its factorization.

6542457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820.

The product of its digits is 33600, while the sum is 33.

The square root of 6542457 is about 2557.8227069130. The cubic root of 6542457 is about 187.0310128057.

Subtracting 6542457 from its reverse (7542456), we obtain a palindrome (999999).

The spelling of 6542457 in words is "six million, five hundred forty-two thousand, four hundred fifty-seven".