6555377 has 2 divisors, whose sum is σ = 6555378. Its totient is φ = 6555376.

The previous prime is 6555349. The next prime is 6555383. The reversal of 6555377 is 7735556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5779216 + 776161 = 2404^2 + 881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6555377 is a prime.

It is a super-2 number, since 2×6555377² = 85945935224258, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6555377.

It is not a weakly prime, because it can be changed into another prime (6555317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277688 + 3277689.

It is an arithmetic number, because the mean of its divisors is an integer number (3277689).

Almost surely, 2^6555377 is an apocalyptic number.

It is an amenable number.

6555377 is a deficient number, since it is larger than the sum of its proper divisors (1).

6555377 is an equidigital number, since it uses as much as digits as its factorization.

6555377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110250, while the sum is 38.

The square root of 6555377 is about 2560.3470467888. The cubic root of 6555377 is about 187.1540477130.

The spelling of 6555377 in words is "six million, five hundred fifty-five thousand, three hundred seventy-seven".