505455345140 has 24 divisors (see below), whose sum is σ = 1098058164840. Its totient is φ = 195210339968.

The previous prime is 505455345133. The next prime is 505455345163. The reversal of 505455345140 is 41543554505.

It can be written as a sum of positive squares in 4 ways, for example, as 216256621156 + 289198723984 = 465034^2 + 537772^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435736787 + ... + 435737946.

It is an arithmetic number, because the mean of its divisors is an integer number (45752423535).

Almost surely, 2^505455345140 is an apocalyptic number.

It is an amenable number.

505455345140 is an abundant number, since it is smaller than the sum of its proper divisors (592602819700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505455345140 is a wasteful number, since it uses less digits than its factorization.

505455345140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871474771 (or 871474769 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 41.

Adding to 505455345140 its reverse (41543554505), we get a palindrome (546998899645).

The spelling of 505455345140 in words is "five hundred five billion, four hundred fifty-five million, three hundred forty-five thousand, one hundred forty".