10005511 has 2 divisors, whose sum is σ = 10005512. Its totient is φ = 10005510.

The previous prime is 10005509. The next prime is 10005539. The reversal of 10005511 is 11550001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10005511 - 2¹ = 10005509 is a prime.

It is a super-2 number, since 2×10005511² = 200220500742242, which contains 22 as substring.

Together with 10005509, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 10005491 and 10005500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10005581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002755 + 5002756.

It is an arithmetic number, because the mean of its divisors is an integer number (5002756).

Almost surely, 2^10005511 is an apocalyptic number.

10005511 is a deficient number, since it is larger than the sum of its proper divisors (1).

10005511 is an equidigital number, since it uses as much as digits as its factorization.

10005511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25, while the sum is 13.

The square root of 10005511 is about 3163.1489057583. The cubic root of 10005511 is about 215.4830387004.

Adding to 10005511 its reverse (11550001), we get a palindrome (21555512).

The spelling of 10005511 in words is "ten million, five thousand, five hundred eleven".