501103540 has 48 divisors (see below), whose sum is σ = 1209906432. Its totient is φ = 170770176.

The previous prime is 501103501. The next prime is 501103571. The reversal of 501103540 is 45301105.

It is a super-2 number, since 2×501103540² = 502209515601063200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12664 + ... + 34096.

It is an arithmetic number, because the mean of its divisors is an integer number (25206384).

Almost surely, 2^501103540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501103540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604953216).

501103540 is an abundant number, since it is smaller than the sum of its proper divisors (708802892).

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

501103540 is a wasteful number, since it uses less digits than its factorization.

501103540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21616 (or 21614 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 501103540 is about 22385.3420791374. The cubic root of 501103540 is about 794.2840171095.

Adding to 501103540 its reverse (45301105), we get a palindrome (546404645).

The spelling of 501103540 in words is "five hundred one million, one hundred three thousand, five hundred forty".