50990500 has 96 divisors (see below), whose sum is σ = 124121088. Its totient is φ = 18144000.

The previous prime is 50990483. The next prime is 50990519. The reversal of 50990500 is 509905.

It is a congruent number.

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, 401437 + ... + 401563.

It is an arithmetic number, because the mean of its divisors is an integer number (1292928).

Almost surely, 2^50990500 is an apocalyptic number.

50990500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50990500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62060544).

50990500 is an abundant number, since it is smaller than the sum of its proper divisors (73130588).

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

50990500 is a wasteful number, since it uses less digits than its factorization.

50990500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 50990500 is about 7140.7632645257. The cubic root of 50990500 is about 370.8199492988.

Multiplying 50990500 by its reverse (509905), we get a square (26000310902500 = 5099050²).

50990500 divided by its reverse (509905) gives a square (100 = 10²).

The spelling of 50990500 in words is "fifty million, nine hundred ninety thousand, five hundred".