20296563 has 16 divisors (see below), whose sum is σ = 31215360. Its totient is φ = 11490336.

The previous prime is 20296561. The next prime is 20296567. The reversal of 20296563 is 36569202.

It is not a de Polignac number, because 20296563 - 2¹ = 20296561 is a prime.

It is a super-2 number, since 2×20296563² = 823900939225938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20296561) 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, 2145 + ... + 6722.

It is an arithmetic number, because the mean of its divisors is an integer number (1950960).

Almost surely, 2^20296563 is an apocalyptic number.

20296563 is a deficient number, since it is larger than the sum of its proper divisors (10918797).

20296563 is a wasteful number, since it uses less digits than its factorization.

20296563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8986.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 20296563 is about 4505.1706959892. The cubic root of 20296563 is about 272.7768440297.

The spelling of 20296563 in words is "twenty million, two hundred ninety-six thousand, five hundred sixty-three".