50013563 has 4 divisors (see below), whose sum is σ = 51233448. Its totient is φ = 48793680.

The previous prime is 50013553. The next prime is 50013581. The reversal of 50013563 is 36531005.

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 50013563 - 2⁴ = 50013547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50013553) 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, 609881 + ... + 609962.

It is an arithmetic number, because the mean of its divisors is an integer number (12808362).

Almost surely, 2^50013563 is an apocalyptic number.

50013563 is a deficient number, since it is larger than the sum of its proper divisors (1219885).

50013563 is a wasteful number, since it uses less digits than its factorization.

50013563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219884.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 50013563 is about 7072.0267957637. The cubic root of 50013563 is about 368.4364578653.

Adding to 50013563 its reverse (36531005), we get a palindrome (86544568).

The spelling of 50013563 in words is "fifty million, thirteen thousand, five hundred sixty-three".