505000505001 has 64 divisors (see below), whose sum is σ = 711704180736. Its totient is φ = 318106828800.

The previous prime is 505000504991. The next prime is 505000505011. The reversal of 505000505001 is 100505000505.

It is an interprime number because it is at equal distance from previous prime (505000504991) and next prime (505000505011).

It is not a de Polignac number, because 505000505001 - 2¹⁰ = 505000503977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505000505011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 536663191 + ... + 536664131.

It is an arithmetic number, because the mean of its divisors is an integer number (11120377824).

Almost surely, 2^505000505001 is an apocalyptic number.

It is an amenable number.

505000505001 is a deficient number, since it is larger than the sum of its proper divisors (206703675735).

505000505001 is a wasteful number, since it uses less digits than its factorization.

505000505001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762.

The product of its (nonzero) digits is 625, while the sum is 21.

Adding to 505000505001 its reverse (100505000505), we get a palindrome (605505505506).

The spelling of 505000505001 in words is "five hundred five billion, five hundred five thousand, one".