10505765 has 8 divisors (see below), whose sum is σ = 13270560. Its totient is φ = 7962192.

The previous prime is 10505749. The next prime is 10505767. The reversal of 10505765 is 56750501.

10505765 = 401² + 402² + ... + 457².

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

It is a cyclic number.

It is not a de Polignac number, because 10505765 - 2⁴ = 10505749 is a prime.

It is a super-2 number, since 2×10505765² = 220742196470450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10505767) 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, 55199 + ... + 55388.

It is an arithmetic number, because the mean of its divisors is an integer number (1658820).

Almost surely, 2^10505765 is an apocalyptic number.

It is an amenable number.

10505765 is a deficient number, since it is larger than the sum of its proper divisors (2764795).

10505765 is a wasteful number, since it uses less digits than its factorization.

10505765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110611.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 10505765 is about 3241.2597859474. The cubic root of 10505765 is about 219.0160257380.

The spelling of 10505765 in words is "ten million, five hundred five thousand, seven hundred sixty-five".