512256013 has 2 divisors, whose sum is σ = 512256014. Its totient is φ = 512256012.

The previous prime is 512256001. The next prime is 512256037. The reversal of 512256013 is 310652215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297838564 + 214417449 = 17258^2 + 14643^2 .

It is a cyclic number.

It is not a de Polignac number, because 512256013 - 2¹³ = 512247821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512256313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256128006 + 256128007.

It is an arithmetic number, because the mean of its divisors is an integer number (256128007).

Almost surely, 2^512256013 is an apocalyptic number.

It is an amenable number.

512256013 is a deficient number, since it is larger than the sum of its proper divisors (1).

512256013 is an equidigital number, since it uses as much as digits as its factorization.

512256013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 512256013 is about 22633.0734324793. The cubic root of 512256013 is about 800.1333178859.

The spelling of 512256013 in words is "five hundred twelve million, two hundred fifty-six thousand, thirteen".