256029013 has 2 divisors, whose sum is σ = 256029014. Its totient is φ = 256029012.

The previous prime is 256028999. The next prime is 256029019. The reversal of 256029013 is 310920652.

256029013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229886244 + 26142769 = 15162^2 + 5113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256029013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256029019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128014506 + 128014507.

It is an arithmetic number, because the mean of its divisors is an integer number (128014507).

Almost surely, 2^256029013 is an apocalyptic number.

It is an amenable number.

256029013 is a deficient number, since it is larger than the sum of its proper divisors (1).

256029013 is an equidigital number, since it uses as much as digits as its factorization.

256029013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 256029013 is about 16000.9066305632. The cubic root of 256029013 is about 634.9844069993.

Adding to 256029013 its reverse (310920652), we get a palindrome (566949665).

The spelling of 256029013 in words is "two hundred fifty-six million, twenty-nine thousand, thirteen".