506051100505 has 4 divisors (see below), whose sum is σ = 607261320612. Its totient is φ = 404840880400.

The previous prime is 506051100437. The next prime is 506051100547. The reversal of 506051100505 is 505001150605.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181503265024 + 324547835481 = 426032^2 + 569691^2 .

It is not a de Polignac number, because 506051100505 - 2⁹ = 506051099993 is a prime.

It is a super-2 number, since 2×506051100505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50605110046 + ... + 50605110055.

It is an arithmetic number, because the mean of its divisors is an integer number (151815330153).

Almost surely, 2^506051100505 is an apocalyptic number.

It is an amenable number.

506051100505 is a deficient number, since it is larger than the sum of its proper divisors (101210220107).

506051100505 is a wasteful number, since it uses less digits than its factorization.

506051100505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101210220106.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 506051100505 in words is "five hundred six billion, fifty-one million, one hundred thousand, five hundred five".