20314555 has 4 divisors (see below), whose sum is σ = 24377472. Its totient is φ = 16251640.

The previous prime is 20314549. The next prime is 20314559. The reversal of 20314555 is 55541302.

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

It is not a de Polignac number, because 20314555 - 2⁵ = 20314523 is a prime.

It is a super-2 number, since 2×20314555² = 825362289696050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20314559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2031451 + ... + 2031460.

It is an arithmetic number, because the mean of its divisors is an integer number (6094368).

Almost surely, 2^20314555 is an apocalyptic number.

20314555 is a deficient number, since it is larger than the sum of its proper divisors (4062917).

20314555 is an equidigital number, since it uses as much as digits as its factorization.

20314555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062916.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 20314555 is about 4507.1670703447. The cubic root of 20314555 is about 272.8574217365.

Adding to 20314555 its reverse (55541302), we get a palindrome (75855857).

The spelling of 20314555 in words is "twenty million, three hundred fourteen thousand, five hundred fifty-five".