20514705 has 8 divisors (see below), whose sum is σ = 32823552. Its totient is φ = 10941168.

The previous prime is 20514677. The next prime is 20514707. The reversal of 20514705 is 50741502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20514705 - 2⁷ = 20514577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20514707) 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, 683809 + ... + 683838.

It is an arithmetic number, because the mean of its divisors is an integer number (4102944).

Almost surely, 2^20514705 is an apocalyptic number.

It is an amenable number.

20514705 is a deficient number, since it is larger than the sum of its proper divisors (12308847).

20514705 is a wasteful number, since it uses less digits than its factorization.

20514705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367655.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 20514705 is about 4529.3161735520. The cubic root of 20514705 is about 273.7506077841.

The spelling of 20514705 in words is "twenty million, five hundred fourteen thousand, seven hundred five".