6225811 has 4 divisors (see below), whose sum is σ = 6244000. Its totient is φ = 6207624.

The previous prime is 6225803. The next prime is 6225827. The reversal of 6225811 is 1185226.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6225811 - 2³ = 6225803 is a prime.

It is an Ulam number.

It is a Duffinian number.

6225811 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6225851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8571 + ... + 9268.

It is an arithmetic number, because the mean of its divisors is an integer number (1561000).

Almost surely, 2^6225811 is an apocalyptic number.

6225811 is a deficient number, since it is larger than the sum of its proper divisors (18189).

6225811 is a wasteful number, since it uses less digits than its factorization.

6225811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18188.

The product of its digits is 960, while the sum is 25.

The square root of 6225811 is about 2495.1575100582. The cubic root of 6225811 is about 183.9636329355.

The spelling of 6225811 in words is "six million, two hundred twenty-five thousand, eight hundred eleven".