501020205 has 32 divisors (see below), whose sum is σ = 938504448. Its totient is φ = 223449600.

The previous prime is 501020203. The next prime is 501020237. The reversal of 501020205 is 502020105.

It is not a de Polignac number, because 501020205 - 2¹ = 501020203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501020203) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 53886 + ... + 62495.

It is an arithmetic number, because the mean of its divisors is an integer number (29328264).

Almost surely, 2^501020205 is an apocalyptic number.

It is an amenable number.

501020205 is a deficient number, since it is larger than the sum of its proper divisors (437484243).

501020205 is a wasteful number, since it uses less digits than its factorization.

501020205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116437.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 501020205 is about 22383.4806274627. The cubic root of 501020205 is about 794.2399840751.

Subtracting from 501020205 its product of nonzero digits (100), we obtain a palindrome (501020105).

The spelling of 501020205 in words is "five hundred one million, twenty thousand, two hundred five".