6441425 has 6 divisors (see below), whose sum is σ = 7987398. Its totient is φ = 5153120.

The previous prime is 6441389. The next prime is 6441427. The reversal of 6441425 is 5241446.

It can be written as a sum of positive squares in 3 ways, for example, as 55696 + 6385729 = 236^2 + 2527^2 .

It is not a de Polignac number, because 6441425 - 2¹² = 6437329 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6441394 and 6441403.

It is not an unprimeable number, because it can be changed into a prime (6441427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128804 + ... + 128853.

It is an arithmetic number, because the mean of its divisors is an integer number (1331233).

Almost surely, 2^6441425 is an apocalyptic number.

It is an amenable number.

6441425 is a deficient number, since it is larger than the sum of its proper divisors (1545973).

6441425 is a wasteful number, since it uses less digits than its factorization.

6441425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257667 (or 257662 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 6441425 is about 2537.9962568924. The cubic root of 6441425 is about 186.0632709557.

The spelling of 6441425 in words is "six million, four hundred forty-one thousand, four hundred twenty-five".