20514799 has 4 divisors (see below), whose sum is σ = 20774560. Its totient is φ = 20255040.

The previous prime is 20514787. The next prime is 20514829. The reversal of 20514799 is 99741502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20514799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129762 + ... + 129919.

It is an arithmetic number, because the mean of its divisors is an integer number (5193640).

Almost surely, 2^20514799 is an apocalyptic number.

20514799 is a deficient number, since it is larger than the sum of its proper divisors (259761).

20514799 is an equidigital number, since it uses as much as digits as its factorization.

20514799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259760.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 20514799 is about 4529.3265503825. The cubic root of 20514799 is about 273.7510258991.

The spelling of 20514799 in words is "twenty million, five hundred fourteen thousand, seven hundred ninety-nine".