10563381 has 6 divisors (see below), whose sum is σ = 15258230. Its totient is φ = 7042248.

The previous prime is 10563349. The next prime is 10563383. The reversal of 10563381 is 18336501.

10563381 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6426225 + 4137156 = 2535^2 + 2034^2 .

It is not a de Polignac number, because 10563381 - 2⁵ = 10563349 is a prime.

It is a super-2 number, since 2×10563381² = 223170036302322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10563383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586846 + ... + 586863.

Almost surely, 2^10563381 is an apocalyptic number.

It is an amenable number.

10563381 is a deficient number, since it is larger than the sum of its proper divisors (4694849).

10563381 is a wasteful number, since it uses less digits than its factorization.

10563381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173715 (or 1173712 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 10563381 is about 3250.1355356354. The cubic root of 10563381 is about 219.4156739057.

Adding to 10563381 its reverse (18336501), we get a palindrome (28899882).

It can be divided in two parts, 10 and 563381, that added together give a triangular number (563391 = T₁₀₆₁).

The spelling of 10563381 in words is "ten million, five hundred sixty-three thousand, three hundred eighty-one".