10025681 has 4 divisors (see below), whose sum is σ = 10041252. Its totient is φ = 10010112.

The previous prime is 10025671. The next prime is 10025713. The reversal of 10025681 is 18652001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18652001 = 1567 ⋅11903.

It can be written as a sum of positive squares in 2 ways, for example, as 6713281 + 3312400 = 2591^2 + 1820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10025681 is a prime.

It is a super-2 number, since 2×10025681² = 201028559027522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10025621) 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, 6776 + ... + 8121.

It is an arithmetic number, because the mean of its divisors is an integer number (2510313).

Almost surely, 2^10025681 is an apocalyptic number.

It is an amenable number.

10025681 is a deficient number, since it is larger than the sum of its proper divisors (15571).

10025681 is an equidigital number, since it uses as much as digits as its factorization.

10025681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15570.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 10025681 is about 3166.3355791830. The cubic root of 10025681 is about 215.6277381435.

Adding to 10025681 its reverse (18652001), we get a palindrome (28677682).

The spelling of 10025681 in words is "ten million, twenty-five thousand, six hundred eighty-one".