501804801 has 45 divisors (see below), whose sum is σ = 797224593. Its totient is φ = 314510040.

The previous prime is 501804799. The next prime is 501804811. The reversal of 501804801 is 108408105.

The square root of 501804801 is 22401.

It is a perfect power (a square), and thus also a powerful number.

501804801 is a `hidden beast` number, since 5 + 0 + 180 + 480 + 1 = 666.

It is not a de Polignac number, because 501804801 - 2¹ = 501804799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (501804811) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3830506 + ... + 3830636.

Almost surely, 2^501804801 is an apocalyptic number.

501804801 is the 22401-st square number.

501804801 is the 11201-st centered octagonal number.

It is an amenable number.

501804801 is a deficient number, since it is larger than the sum of its proper divisors (295419792).

501804801 is an equidigital number, since it uses as much as digits as its factorization.

501804801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The cubic root of 501804801 is about 794.6543602510.

The spelling of 501804801 in words is "five hundred one million, eight hundred four thousand, eight hundred one".