50021563 has 8 divisors (see below), whose sum is σ = 50800896. Its totient is φ = 49248000.

The previous prime is 50021519. The next prime is 50021567. The reversal of 50021563 is 36512005.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 50021563 - 2²⁵ = 16467131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50021567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17995 + ... + 20587.

It is an arithmetic number, because the mean of its divisors is an integer number (6350112).

Almost surely, 2^50021563 is an apocalyptic number.

50021563 is a deficient number, since it is larger than the sum of its proper divisors (779333).

50021563 is a wasteful number, since it uses less digits than its factorization.

50021563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 50021563 is about 7072.5923818640. The cubic root of 50021563 is about 368.4561014336.

Adding to 50021563 its reverse (36512005), we get a palindrome (86533568).

The spelling of 50021563 in words is "fifty million, twenty-one thousand, five hundred sixty-three".