50242290 has 64 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 11436480.

The previous prime is 50242279. The next prime is 50242303. The reversal of 50242290 is 9224205.

It is a self number, because there is not a number n which added to its sum of digits gives 50242290.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87705 + ... + 88275.

It is an arithmetic number, because the mean of its divisors is an integer number (2162160).

Almost surely, 2^50242290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50242290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69189120).

50242290 is an abundant number, since it is smaller than the sum of its proper divisors (88135950).

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

50242290 is a wasteful number, since it uses less digits than its factorization.

50242290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 50242290 is about 7088.1795970475. The cubic root of 50242290 is about 368.9972605756.

Adding to 50242290 its reverse (9224205), we get a palindrome (59466495).

The spelling of 50242290 in words is "fifty million, two hundred forty-two thousand, two hundred ninety".