50289330 has 128 divisors (see below), whose sum is σ = 150796800. Its totient is φ = 10513152.

The previous prime is 50289311. The next prime is 50289367. The reversal of 50289330 is 3398205.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 63 ways as a sum of consecutive naturals, for example, 461316 + ... + 461424.

It is an arithmetic number, because the mean of its divisors is an integer number (1178100).

Almost surely, 2^50289330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50289330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75398400).

50289330 is an abundant number, since it is smaller than the sum of its proper divisors (100507470).

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

50289330 is a wasteful number, since it uses less digits than its factorization.

50289330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 50289330 is about 7091.4970210810. The cubic root of 50289330 is about 369.1123841554.

The spelling of 50289330 in words is "fifty million, two hundred eighty-nine thousand, three hundred thirty".