6425381 has 2 divisors, whose sum is σ = 6425382. Its totient is φ = 6425380.

The previous prime is 6425369. The next prime is 6425389. The reversal of 6425381 is 1835246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6421156 + 4225 = 2534^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 6425381 - 2¹⁰ = 6424357 is a prime.

It is a super-2 number, since 2×6425381² = 82571041990322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6425389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212690 + 3212691.

It is an arithmetic number, because the mean of its divisors is an integer number (3212691).

Almost surely, 2^6425381 is an apocalyptic number.

It is an amenable number.

6425381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6425381 is an equidigital number, since it uses as much as digits as its factorization.

6425381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 6425381 is about 2534.8335251057. The cubic root of 6425381 is about 185.9086632916.

The spelling of 6425381 in words is "six million, four hundred twenty-five thousand, three hundred eighty-one".