50901090 has 64 divisors (see below), whose sum is σ = 129548160. Its totient is φ = 12776960.

The previous prime is 50901089. The next prime is 50901167. The reversal of 50901090 is 9010905.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 50901090.

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, 34957 + ... + 36383.

It is an arithmetic number, because the mean of its divisors is an integer number (2024190).

Almost surely, 2^50901090 is an apocalyptic number.

It is a pronic number, being equal to 7134×7135.

It is a practical number, because each smaller number is the sum of distinct divisors of 50901090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64774080).

50901090 is an abundant number, since it is smaller than the sum of its proper divisors (78647070).

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

50901090 is a wasteful number, since it uses less digits than its factorization.

50901090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507.

The product of its (nonzero) digits is 405, while the sum is 24.

The square root of 50901090 is about 7134.4999824795. The cubic root of 50901090 is about 370.6030826977.

Adding to 50901090 its reverse (9010905), we get a palindrome (59911995).

The spelling of 50901090 in words is "fifty million, nine hundred one thousand, ninety".