524212813 has 2 divisors, whose sum is σ = 524212814. Its totient is φ = 524212812.

The previous prime is 524212807. The next prime is 524212841. The reversal of 524212813 is 318212425.

It is an a-pointer prime, because the next prime (524212841) can be obtained adding 524212813 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398481444 + 125731369 = 19962^2 + 11213^2 .

It is a cyclic number.

It is not a de Polignac number, because 524212813 - 2⁹ = 524212301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (524216813) 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 as a sum of consecutive naturals, namely, 262106406 + 262106407.

It is an arithmetic number, because the mean of its divisors is an integer number (262106407).

Almost surely, 2^524212813 is an apocalyptic number.

It is an amenable number.

524212813 is a deficient number, since it is larger than the sum of its proper divisors (1).

524212813 is an equidigital number, since it uses as much as digits as its factorization.

524212813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 28.

The square root of 524212813 is about 22895.6942021857. The cubic root of 524212813 is about 806.3109244829.

The spelling of 524212813 in words is "five hundred twenty-four million, two hundred twelve thousand, eight hundred thirteen".