4000511 has 2 divisors, whose sum is σ = 4000512. Its totient is φ = 4000510.

The previous prime is 4000489. The next prime is 4000523. The reversal of 4000511 is 1150004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4000511 - 2¹⁰ = 3999487 is a prime.

It is a super-2 number, since 2×4000511² = 32008176522242, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4000492 and 4000501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000541) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000255 + 2000256.

It is an arithmetic number, because the mean of its divisors is an integer number (2000256).

Almost surely, 2^4000511 is an apocalyptic number.

4000511 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000511 is an equidigital number, since it uses as much as digits as its factorization.

4000511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 4000511 is about 2000.1277459202. The cubic root of 4000511 is about 158.7468645918.

Adding to 4000511 its reverse (1150004), we get a palindrome (5150515).

The spelling of 4000511 in words is "four million, five hundred eleven", and thus it is an aban number.