10562721 has 16 divisors (see below), whose sum is σ = 15254400. Its totient is φ = 6462720.

The previous prime is 10562701. The next prime is 10562731. The reversal of 10562721 is 12726501.

It is not a de Polignac number, because 10562721 - 2¹⁰ = 10561697 is a prime.

It is a super-2 number, since 2×10562721² = 223142149847682, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10562691 and 10562700.

It is not an unprimeable number, because it can be changed into a prime (10562701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7081 + ... + 8441.

It is an arithmetic number, because the mean of its divisors is an integer number (953400).

Almost surely, 2^10562721 is an apocalyptic number.

It is an amenable number.

10562721 is a deficient number, since it is larger than the sum of its proper divisors (4691679).

10562721 is a wasteful number, since it uses less digits than its factorization.

10562721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 10562721 is about 3250.0339998222. The cubic root of 10562721 is about 219.4111041137.

It can be divided in two parts, 105 and 62721, that added together give a palindrome (62826).

The spelling of 10562721 in words is "ten million, five hundred sixty-two thousand, seven hundred twenty-one".