6554381 has 2 divisors, whose sum is σ = 6554382. Its totient is φ = 6554380.

The previous prime is 6554371. The next prime is 6554399. The reversal of 6554381 is 1834556.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6421156 + 133225 = 2534^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 6554381 - 2¹⁰ = 6553357 is a prime.

It is a super-2 number, since 2×6554381² = 85919820586322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6554341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277190 + 3277191.

It is an arithmetic number, because the mean of its divisors is an integer number (3277191).

Almost surely, 2^6554381 is an apocalyptic number.

It is an amenable number.

6554381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6554381 is an equidigital number, since it uses as much as digits as its factorization.

6554381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 32.

The square root of 6554381 is about 2560.1525345182. The cubic root of 6554381 is about 187.1445687324.

The spelling of 6554381 in words is "six million, five hundred fifty-four thousand, three hundred eighty-one".