50421012 has 12 divisors (see below), whose sum is σ = 117649056. Its totient is φ = 16807000.

The previous prime is 50420971. The next prime is 50421017. The reversal of 50421012 is 21012405.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×50421012² = 5084556902208288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50420982 and 50421000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50421017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2100864 + ... + 2100887.

It is an arithmetic number, because the mean of its divisors is an integer number (9804088).

Almost surely, 2^50421012 is an apocalyptic number.

It is an amenable number.

50421012 is an abundant number, since it is smaller than the sum of its proper divisors (67228044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50421012 is a wasteful number, since it uses less digits than its factorization.

50421012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201758 (or 4201756 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 50421012 is about 7100.7754506110. The cubic root of 50421012 is about 369.4342754612.

Adding to 50421012 its reverse (21012405), we get a palindrome (71433417).

The spelling of 50421012 in words is "fifty million, four hundred twenty-one thousand, twelve".