505300513261 has 8 divisors (see below), whose sum is σ = 525815278560. Its totient is φ = 485184093072.

The previous prime is 505300513243. The next prime is 505300513303. The reversal of 505300513261 is 162315003505.

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

It is a cyclic number.

It is not a de Polignac number, because 505300513261 - 2⁵ = 505300513229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505300513561) 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, 99583690 + ... + 99588763.

It is an arithmetic number, because the mean of its divisors is an integer number (65726909820).

Almost surely, 2^505300513261 is an apocalyptic number.

It is an amenable number.

505300513261 is a deficient number, since it is larger than the sum of its proper divisors (20514765299).

505300513261 is a wasteful number, since it uses less digits than its factorization.

505300513261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199172555.

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 505300513261 its reverse (162315003505), we get a palindrome (667615516766).

The spelling of 505300513261 in words is "five hundred five billion, three hundred million, five hundred thirteen thousand, two hundred sixty-one".