50899290 has 64 divisors (see below), whose sum is σ = 138499200. Its totient is φ = 11867904.

The previous prime is 50899283. The next prime is 50899307. The reversal of 50899290 is 9299805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3976 + ... + 10844.

It is an arithmetic number, because the mean of its divisors is an integer number (2164050).

Almost surely, 2^50899290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50899290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69249600).

50899290 is an abundant number, since it is smaller than the sum of its proper divisors (87599910).

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

50899290 is a wasteful number, since it uses less digits than its factorization.

50899290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6911.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 50899290 is about 7134.3738337713. The cubic root of 50899290 is about 370.5987141376.

The spelling of 50899290 in words is "fifty million, eight hundred ninety-nine thousand, two hundred ninety".