10561601 has 4 divisors (see below), whose sum is σ = 10734804. Its totient is φ = 10388400.

The previous prime is 10561583. The next prime is 10561609. The reversal of 10561601 is 10616501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4431025 + 6130576 = 2105^2 + 2476^2 .

It is a cyclic number.

It is not a de Polignac number, because 10561601 - 2¹⁴ = 10545217 is a prime.

It is a super-2 number, since 2×10561601² = 223094831366402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10561609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86510 + ... + 86631.

It is an arithmetic number, because the mean of its divisors is an integer number (2683701).

Almost surely, 2^10561601 is an apocalyptic number.

It is an amenable number.

10561601 is a deficient number, since it is larger than the sum of its proper divisors (173203).

10561601 is an equidigital number, since it uses as much as digits as its factorization.

10561601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173202.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 10561601 is about 3249.8616893646. The cubic root of 10561601 is about 219.4033488796.

The spelling of 10561601 in words is "ten million, five hundred sixty-one thousand, six hundred one".