10505247 has 4 divisors (see below), whose sum is σ = 14007000. Its totient is φ = 7003496.

The previous prime is 10505207. The next prime is 10505263. The reversal of 10505247 is 74250501.

10505247 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10505247 - 2¹² = 10501151 is a prime.

It is a super-2 number, since 2×10505247² = 220720429062018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10505207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750872 + ... + 1750877.

It is an arithmetic number, because the mean of its divisors is an integer number (3501750).

Almost surely, 2^10505247 is an apocalyptic number.

10505247 is a deficient number, since it is larger than the sum of its proper divisors (3501753).

10505247 is an equidigital number, since it uses as much as digits as its factorization.

10505247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501752.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 10505247 is about 3241.1798777606. The cubic root of 10505247 is about 219.0124260583.

Adding to 10505247 its reverse (74250501), we get a palindrome (84755748).

The spelling of 10505247 in words is "ten million, five hundred five thousand, two hundred forty-seven".