501050538 has 96 divisors (see below), whose sum is σ = 1171946880. Its totient is φ = 154344960.

The previous prime is 501050533. The next prime is 501050567. The reversal of 501050538 is 835050105.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (501050531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1782958 + ... + 1783238.

It is an arithmetic number, because the mean of its divisors is an integer number (12207780).

Almost surely, 2^501050538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501050538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585973440).

501050538 is an abundant number, since it is smaller than the sum of its proper divisors (670896342).

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

501050538 is a wasteful number, since it uses less digits than its factorization.

501050538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 501050538 is about 22384.1581927934. The cubic root of 501050538 is about 794.2560121681.

The spelling of 501050538 in words is "five hundred one million, fifty thousand, five hundred thirty-eight".