10561995 has 24 divisors (see below), whose sum is σ = 18987696. Its totient is φ = 5632416.

The previous prime is 10561987. The next prime is 10562009. The reversal of 10561995 is 59916501.

10561995 is a `hidden beast` number, since 1 + 0 + 561 + 9 + 95 = 666.

It is not a de Polignac number, because 10561995 - 2³ = 10561987 is a prime.

It is a super-2 number, since 2×10561995² = 223111476760050, which contains 22 as substring.

It is a nialpdrome in base 15.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3132 + ... + 5561.

It is an arithmetic number, because the mean of its divisors is an integer number (791154).

Almost surely, 2^10561995 is an apocalyptic number.

10561995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10561995 is a deficient number, since it is larger than the sum of its proper divisors (8425701).

10561995 is an frugal number, since it uses more digits than its factorization.

10561995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8713 (or 8701 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 10561995 is about 3249.9223067637. The cubic root of 10561995 is about 219.4060771227.

The spelling of 10561995 in words is "ten million, five hundred sixty-one thousand, nine hundred ninety-five".