10505011 has 8 divisors (see below), whose sum is σ = 11520000. Its totient is φ = 9500040.

The previous prime is 10504999. The next prime is 10505039. The reversal of 10505011 is 11050501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10505011 - 2⁹ = 10504499 is a prime.

It is a super-2 number, since 2×10505011² = 220710512220242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10504982 and 10505000.

It is not an unprimeable number, because it can be changed into a prime (10506011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211 + ... + 4588.

It is an arithmetic number, because the mean of its divisors is an integer number (1440000).

Almost surely, 2^10505011 is an apocalyptic number.

10505011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10505011 is a deficient number, since it is larger than the sum of its proper divisors (1014989).

10505011 is a wasteful number, since it uses less digits than its factorization.

10505011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009.

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

The square root of 10505011 is about 3241.1434710608. The cubic root of 10505011 is about 219.0107860106.

Adding to 10505011 its reverse (11050501), we get a palindrome (21555512).

Subtracting 10505011 from its reverse (11050501), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 10505011 in words is "ten million, five hundred five thousand, eleven".