505212045013 has 16 divisors (see below), whose sum is σ = 577559913840. Its totient is φ = 437788855296.

The previous prime is 505212045011. The next prime is 505212045017. The reversal of 505212045013 is 310540212505.

It can be written as a sum of positive squares in 8 ways, for example, as 138742840324 + 366469204689 = 372482^2 + 605367^2 .

It is not a de Polignac number, because 505212045013 - 2¹ = 505212045011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505212045011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2852370 + ... + 3024307.

It is an arithmetic number, because the mean of its divisors is an integer number (36097494615).

Almost surely, 2^505212045013 is an apocalyptic number.

It is an amenable number.

505212045013 is a deficient number, since it is larger than the sum of its proper divisors (72347868827).

505212045013 is a wasteful number, since it uses less digits than its factorization.

505212045013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5877096.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 505212045013 its reverse (310540212505), we get a palindrome (815752257518).

The spelling of 505212045013 in words is "five hundred five billion, two hundred twelve million, forty-five thousand, thirteen".