10563721 has 8 divisors (see below), whose sum is σ = 12110400. Its totient is φ = 9026448.

The previous prime is 10563719. The next prime is 10563727. The reversal of 10563721 is 12736501.

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 10563721 - 2¹ = 10563719 is a prime.

It is a super-2 number, since 2×10563721² = 223184402731682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10563727) 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, 255 + ... + 4603.

It is an arithmetic number, because the mean of its divisors is an integer number (1513800).

Almost surely, 2^10563721 is an apocalyptic number.

It is an amenable number.

10563721 is a deficient number, since it is larger than the sum of its proper divisors (1546679).

10563721 is an equidigital number, since it uses as much as digits as its factorization.

10563721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 10563721 is about 3250.1878407255. The cubic root of 10563721 is about 219.4180279666.

The spelling of 10563721 in words is "ten million, five hundred sixty-three thousand, seven hundred twenty-one".