6551457 has 8 divisors (see below), whose sum is σ = 9529440. Its totient is φ = 3970560.

The previous prime is 6551429. The next prime is 6551497. The reversal of 6551457 is 7541556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6551457 - 2⁶ = 6551393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 198529 = 6551457 / (6 + 5 + 5 + 1 + 4 + 5 + 7).

It is not an unprimeable number, because it can be changed into a prime (6551407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99232 + ... + 99297.

It is an arithmetic number, because the mean of its divisors is an integer number (1191180).

Almost surely, 2^6551457 is an apocalyptic number.

It is an amenable number.

6551457 is a deficient number, since it is larger than the sum of its proper divisors (2977983).

6551457 is a wasteful number, since it uses less digits than its factorization.

6551457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198543.

The product of its digits is 21000, while the sum is 33.

The square root of 6551457 is about 2559.5814110905. The cubic root of 6551457 is about 187.1167353331.

Subtracting 6551457 from its reverse (7541556), we obtain a palindrome (990099).

It can be divided in two parts, 655 and 1457, that added together give a palindrome (2112).

The spelling of 6551457 in words is "six million, five hundred fifty-one thousand, four hundred fifty-seven".