505838001 has 4 divisors (see below), whose sum is σ = 674450672. Its totient is φ = 337225332.

The previous prime is 505837993. The next prime is 505838101. The reversal of 505838001 is 100838505.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 505838001 - 2³ = 505837993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505838001.

It is not an unprimeable number, because it can be changed into a prime (505838101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84306331 + ... + 84306336.

It is an arithmetic number, because the mean of its divisors is an integer number (168612668).

Almost surely, 2^505838001 is an apocalyptic number.

It is an amenable number.

505838001 is a deficient number, since it is larger than the sum of its proper divisors (168612671).

505838001 is a wasteful number, since it uses less digits than its factorization.

505838001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168612670.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 505838001 is about 22490.8426031574. The cubic root of 505838001 is about 796.7776636328. Note that the first 3 decimals are identical.

The spelling of 505838001 in words is "five hundred five million, eight hundred thirty-eight thousand, one".