50421000 has 192 divisors, whose sum is σ = 183530880. Its totient is φ = 11524800.

The previous prime is 50420971. The next prime is 50421017. The reversal of 50421000 is 12405.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7202997 + ... + 7203003.

It is an arithmetic number, because the mean of its divisors is an integer number (955890).

Almost surely, 2^50421000 is an apocalyptic number.

50421000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50421000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91765440).

50421000 is an abundant number, since it is smaller than the sum of its proper divisors (133109880).

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

50421000 is an frugal number, since it uses more digits than its factorization.

50421000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 50421000 is about 7100.7746056328. The cubic root of 50421000 is about 369.4342461533.

Adding to 50421000 its reverse (12405), we get a palindrome (50433405).

The spelling of 50421000 in words is "fifty million, four hundred twenty-one thousand".