525216384013 has 2 divisors, whose sum is σ = 525216384014. Its totient is φ = 525216384012.

The previous prime is 525216383999. The next prime is 525216384019. The reversal of 525216384013 is 310483612525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 489750831684 + 35465552329 = 699822^2 + 188323^2 .

It is a cyclic number.

It is not a de Polignac number, because 525216384013 - 2⁵ = 525216383981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525216384019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262608192006 + 262608192007.

It is an arithmetic number, because the mean of its divisors is an integer number (262608192007).

Almost surely, 2^525216384013 is an apocalyptic number.

It is an amenable number.

525216384013 is a deficient number, since it is larger than the sum of its proper divisors (1).

525216384013 is an equidigital number, since it uses as much as digits as its factorization.

525216384013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 40.

Adding to 525216384013 its reverse (310483612525), we get a palindrome (835699996538).

The spelling of 525216384013 in words is "five hundred twenty-five billion, two hundred sixteen million, three hundred eighty-four thousand, thirteen".