501105020 has 24 divisors (see below), whose sum is σ = 1133268864. Its totient is φ = 185023296.

The previous prime is 501105013. The next prime is 501105047. The reversal of 501105020 is 20501105.

It is a super-2 number, since 2×501105020² = 502212482138400800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 501104986 and 501105004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963404 + ... + 963923.

It is an arithmetic number, because the mean of its divisors is an integer number (47219536).

Almost surely, 2^501105020 is an apocalyptic number.

It is an amenable number.

501105020 is an abundant number, since it is smaller than the sum of its proper divisors (632163844).

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

501105020 is a wasteful number, since it uses less digits than its factorization.

501105020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927349 (or 1927347 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 501105020 is about 22385.3751364591. The cubic root of 501105020 is about 794.2847990764.

Adding to 501105020 its reverse (20501105), we get a palindrome (521606125).

The spelling of 501105020 in words is "five hundred one million, one hundred five thousand, twenty".