50055390 has 192 divisors, whose sum is σ = 168210432. Its totient is φ = 10022400.

The previous prime is 50055389. The next prime is 50055403. The reversal of 50055390 is 9355005.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 214714 + ... + 214946.

It is an arithmetic number, because the mean of its divisors is an integer number (876096).

Almost surely, 2^50055390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50055390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84105216).

50055390 is an abundant number, since it is smaller than the sum of its proper divisors (118155042).

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

50055390 is a wasteful number, since it uses less digits than its factorization.

50055390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

The square root of 50055390 is about 7074.9833922067. The cubic root of 50055390 is about 368.5391386634.

The spelling of 50055390 in words is "fifty million, fifty-five thousand, three hundred ninety".