50490 has 64 divisors (see below), whose sum is σ = 155520. Its totient is φ = 11520.

The previous prime is 50461. The next prime is 50497. The reversal of 50490 is 9405.

50490 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×50490³ = 386133397947000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 50490.

It is not an unprimeable number, because it can be changed into a prime (50497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2962 + ... + 2978.

It is an arithmetic number, because the mean of its divisors is an integer number (2430).

2⁵⁰⁴⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77760).

50490 is an abundant number, since it is smaller than the sum of its proper divisors (105030).

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

50490 is a wasteful number, since it uses less digits than its factorization.

50490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 50490 is about 224.6997997329. The cubic root of 50490 is about 36.9602690147.

Adding to 50490 its reverse (9405), we get a palindrome (59895).

The spelling of 50490 in words is "fifty thousand, four hundred ninety".