8025811 has 4 divisors (see below), whose sum is σ = 8031832. Its totient is φ = 8019792.

The previous prime is 8025803. The next prime is 8025881. The reversal of 8025811 is 1185208.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8025811 - 2³ = 8025803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8025881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21 + ... + 4006.

It is an arithmetic number, because the mean of its divisors is an integer number (2007958).

Almost surely, 2^8025811 is an apocalyptic number.

8025811 is a deficient number, since it is larger than the sum of its proper divisors (6021).

8025811 is a wasteful number, since it uses less digits than its factorization.

8025811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 8025811 is about 2832.9862336411. The cubic root of 8025811 is about 200.2148607583.

It can be divided in two parts, 8025 and 811, that added together give a square (8836 = 94²).

The spelling of 8025811 in words is "eight million, twenty-five thousand, eight hundred eleven".