505351510505 has 8 divisors (see below), whose sum is σ = 607015767624. Its totient is φ = 403885238400.

The previous prime is 505351510453. The next prime is 505351510507. The reversal of 505351510505 is 505015153505.

It can be written as a sum of positive squares in 4 ways, for example, as 5117828521 + 500233681984 = 71539^2 + 707272^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505351510505 - 2⁸ = 505351510249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505351510507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49490636 + ... + 49500845.

It is an arithmetic number, because the mean of its divisors is an integer number (75876970953).

Almost surely, 2^505351510505 is an apocalyptic number.

It is an amenable number.

505351510505 is a deficient number, since it is larger than the sum of its proper divisors (101664257119).

505351510505 is a wasteful number, since it uses less digits than its factorization.

505351510505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98992507.

The product of its (nonzero) digits is 46875, while the sum is 35.

The spelling of 505351510505 in words is "five hundred five billion, three hundred fifty-one million, five hundred ten thousand, five hundred five".