2265227811 has 54 divisors (see below), whose sum is σ = 4183771956. Its totient is φ = 1176714000.

The previous prime is 2265227803. The next prime is 2265227813. The reversal of 2265227811 is 1187225622.

It is a happy number.

It is not a de Polignac number, because 2265227811 - 2³ = 2265227803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2265227813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 32136 + ... + 74586.

Almost surely, 2^2265227811 is an apocalyptic number.

2265227811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2265227811 is a deficient number, since it is larger than the sum of its proper divisors (1918544145).

2265227811 is a wasteful number, since it uses less digits than its factorization.

2265227811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42493 (or 42472 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 2265227811 is about 47594.4094511110. The cubic root of 2265227811 is about 1313.3202126560.

The spelling of 2265227811 in words is "two billion, two hundred sixty-five million, two hundred twenty-seven thousand, eight hundred eleven".