505454454505 has 128 divisors (see below), whose sum is σ = 825066095616. Its totient is φ = 287052595200.

The previous prime is 505454454497. The next prime is 505454454509.

505454454505 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 505454454505 - 2³ = 505454454497 is a prime.

It is a super-2 number, since 2×505454454505² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505454454509) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 204387949 + ... + 204390421.

It is an arithmetic number, because the mean of its divisors is an integer number (6445828872).

Almost surely, 2^505454454505 is an apocalyptic number.

505454454505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505454454505 is a deficient number, since it is larger than the sum of its proper divisors (319611641111).

505454454505 is a wasteful number, since it uses less digits than its factorization.

505454454505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027.

The product of its (nonzero) digits is 4000000, while the sum is 46.

It can be divided in two parts, 505454 and 454505, that added together give a palindrome (959959).

The spelling of 505454454505 in words is "five hundred five billion, four hundred fifty-four million, four hundred fifty-four thousand, five hundred five".