501806106 has 24 divisors (see below), whose sum is σ = 1096872660. Its totient is φ = 165787776.

The previous prime is 501806101. The next prime is 501806113. The reversal of 501806106 is 601608105.

It can be written as a sum of positive squares in 2 ways, for example, as 480267225 + 21538881 = 21915^2 + 4641^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 501806106.

It is not an unprimeable number, because it can be changed into a prime (501806101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121321 + ... + 125388.

Almost surely, 2^501806106 is an apocalyptic number.

501806106 is an abundant number, since it is smaller than the sum of its proper divisors (595066554).

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

501806106 is a wasteful number, since it uses less digits than its factorization.

501806106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246830 (or 246827 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 501806106 is about 22401.0291281450. The cubic root of 501806106 is about 794.6550491132.

The spelling of 501806106 in words is "five hundred one million, eight hundred six thousand, one hundred six".