50021011 has 6 divisors (see below), whose sum is σ = 51687636. Its totient is φ = 48406500.

The previous prime is 50020981. The next prime is 50021033. The reversal of 50021011 is 11012005.

It is a happy number.

It is not a de Polignac number, because 50021011 - 2¹⁵ = 49988243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50021071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25065 + ... + 26986.

It is an arithmetic number, because the mean of its divisors is an integer number (8614606).

Almost surely, 2^50021011 is an apocalyptic number.

50021011 is a deficient number, since it is larger than the sum of its proper divisors (1666625).

50021011 is an equidigital number, since it uses as much as digits as its factorization.

50021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52113 (or 52082 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 50021011 is about 7072.5533578758. The cubic root of 50021011 is about 368.4547460947.

Adding to 50021011 its reverse (11012005), we get a palindrome (61033016).

The spelling of 50021011 in words is "fifty million, twenty-one thousand, eleven".