50206663 has 4 divisors (see below), whose sum is σ = 54068728. Its totient is φ = 46344600.

The previous prime is 50206657. The next prime is 50206679. The reversal of 50206663 is 36660205.

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

It is a cyclic number.

It is not a de Polignac number, because 50206663 - 2²¹ = 48109511 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 (50206693) 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, 1931013 + ... + 1931038.

It is an arithmetic number, because the mean of its divisors is an integer number (13517182).

Almost surely, 2^50206663 is an apocalyptic number.

50206663 is a deficient number, since it is larger than the sum of its proper divisors (3862065).

50206663 is a wasteful number, since it uses less digits than its factorization.

50206663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862064.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 50206663 is about 7085.6660237412. Note that the first 3 decimals coincide. The cubic root of 50206663 is about 368.9100208287.

Adding to 50206663 its reverse (36660205), we get a palindrome (86866868).

The spelling of 50206663 in words is "fifty million, two hundred six thousand, six hundred sixty-three".