10253681 has 4 divisors (see below), whose sum is σ = 10260852. Its totient is φ = 10246512.

The previous prime is 10253627. The next prime is 10253687. The reversal of 10253681 is 18635201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18635201 = 13 ⋅1433477.

It can be written as a sum of positive squares in 2 ways, for example, as 3389281 + 6864400 = 1841^2 + 2620^2 .

It is a cyclic number.

It is not a de Polignac number, because 10253681 - 2²² = 6059377 is a prime.

It is a super-2 number, since 2×10253681² = 210275948099522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10253681.

It is not an unprimeable number, because it can be changed into a prime (10253687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626 + ... + 4571.

It is an arithmetic number, because the mean of its divisors is an integer number (2565213).

Almost surely, 2^10253681 is an apocalyptic number.

It is an amenable number.

10253681 is a deficient number, since it is larger than the sum of its proper divisors (7171).

10253681 is an equidigital number, since it uses as much as digits as its factorization.

10253681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7170.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 10253681 is about 3202.1369427306. The cubic root of 10253681 is about 217.2500744874.

Adding to 10253681 its reverse (18635201), we get a palindrome (28888882).

The spelling of 10253681 in words is "ten million, two hundred fifty-three thousand, six hundred eighty-one".