6551497 has 2 divisors, whose sum is σ = 6551498. Its totient is φ = 6551496.

The previous prime is 6551429. The next prime is 6551533. The reversal of 6551497 is 7941556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6446521 + 104976 = 2539^2 + 324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6551497 is a prime.

It is a super-2 number, since 2×6551497² = 85844225882018, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

6551497 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6551407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275748 + 3275749.

It is an arithmetic number, because the mean of its divisors is an integer number (3275749).

Almost surely, 2^6551497 is an apocalyptic number.

It is an amenable number.

6551497 is a deficient number, since it is larger than the sum of its proper divisors (1).

6551497 is an equidigital number, since it uses as much as digits as its factorization.

6551497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 37.

The square root of 6551497 is about 2559.5892248562. The cubic root of 6551497 is about 187.1171161468.

The spelling of 6551497 in words is "six million, five hundred fifty-one thousand, four hundred ninety-seven".