20095563 has 8 divisors (see below), whose sum is σ = 27044928. Its totient is φ = 13271624.

The previous prime is 20095561. The next prime is 20095573. The reversal of 20095563 is 36559002.

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 20095563 - 2¹ = 20095561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20095563.

It is not an unprimeable number, because it can be changed into a prime (20095561) 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 7 ways as a sum of consecutive naturals, for example, 30981 + ... + 31622.

It is an arithmetic number, because the mean of its divisors is an integer number (3380616).

Almost surely, 2^20095563 is an apocalyptic number.

20095563 is a deficient number, since it is larger than the sum of its proper divisors (6949365).

20095563 is a wasteful number, since it uses less digits than its factorization.

20095563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62713.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 20095563 is about 4482.8074908477. The cubic root of 20095563 is about 271.8734047205.

The spelling of 20095563 in words is "twenty million, ninety-five thousand, five hundred sixty-three".