501061806 has 48 divisors (see below), whose sum is σ = 1306032000. Its totient is φ = 135625104.

The previous prime is 501061801. The next prime is 501061823. The reversal of 501061806 is 608160105.

It is a self number, because there is not a number n which added to its sum of digits gives 501061806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501061801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102256 + ... + 107043.

It is an arithmetic number, because the mean of its divisors is an integer number (27209000).

Almost surely, 2^501061806 is an apocalyptic number.

501061806 is an abundant number, since it is smaller than the sum of its proper divisors (804970194).

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

501061806 is a wasteful number, since it uses less digits than its factorization.

501061806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209333 (or 209330 counting only the distinct ones).

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

The square root of 501061806 is about 22384.4098872407. The cubic root of 501061806 is about 794.2619660649.

The spelling of 501061806 in words is "five hundred one million, sixty-one thousand, eight hundred six".