10561949 has 4 divisors (see below), whose sum is σ = 10609536. Its totient is φ = 10514364.

The previous prime is 10561937. The next prime is 10561951. The reversal of 10561949 is 94916501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10561949 - 2⁴ = 10561933 is a prime.

It is a super-2 number, since 2×10561949² = 223109533357202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10561349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23459 + ... + 23904.

It is an arithmetic number, because the mean of its divisors is an integer number (2652384).

Almost surely, 2^10561949 is an apocalyptic number.

It is an amenable number.

10561949 is a deficient number, since it is larger than the sum of its proper divisors (47587).

10561949 is an equidigital number, since it uses as much as digits as its factorization.

10561949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47586.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 10561949 is about 3249.9152296637. The cubic root of 10561949 is about 219.4057586003.

The spelling of 10561949 in words is "ten million, five hundred sixty-one thousand, nine hundred forty-nine".