20050247 has 8 divisors (see below), whose sum is σ = 23402496. Its totient is φ = 16819992.

The previous prime is 20050243. The next prime is 20050291. The reversal of 20050247 is 74205002.

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

It is not a de Polignac number, because 20050247 - 2² = 20050243 is a prime.

It is a super-2 number, since 2×20050247² = 804024809522018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30143 + ... + 30800.

It is an arithmetic number, because the mean of its divisors is an integer number (2925312).

Almost surely, 2^20050247 is an apocalyptic number.

20050247 is a deficient number, since it is larger than the sum of its proper divisors (3352249).

20050247 is an equidigital number, since it uses as much as digits as its factorization.

20050247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60997.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 20050247 is about 4477.7502163475. The cubic root of 20050247 is about 271.6688904598.

Adding to 20050247 its reverse (74205002), we get a palindrome (94255249).

The spelling of 20050247 in words is "twenty million, fifty thousand, two hundred forty-seven".