505252264513 has 4 divisors (see below), whose sum is σ = 505308606660. Its totient is φ = 505195922368.

The previous prime is 505252264511. The next prime is 505252264547. The reversal of 505252264513 is 315462252505.

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 234843944449 + 270408320064 = 484607^2 + 520008^2 .

It is a cyclic number.

It is not a de Polignac number, because 505252264513 - 2¹ = 505252264511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505252264511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28157620 + ... + 28175557.

It is an arithmetic number, because the mean of its divisors is an integer number (126327151665).

Almost surely, 2^505252264513 is an apocalyptic number.

It is an amenable number.

505252264513 is a deficient number, since it is larger than the sum of its proper divisors (56342147).

505252264513 is an equidigital number, since it uses as much as digits as its factorization.

505252264513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56342146.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 505252264513 in words is "five hundred five billion, two hundred fifty-two million, two hundred sixty-four thousand, five hundred thirteen".