256084251029 has 2 divisors, whose sum is σ = 256084251030. Its totient is φ = 256084251028.

The previous prime is 256084250953. The next prime is 256084251053. The reversal of 256084251029 is 920152480652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225107547025 + 30976704004 = 474455^2 + 176002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256084251029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256084251529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128042125514 + 128042125515.

It is an arithmetic number, because the mean of its divisors is an integer number (128042125515).

Almost surely, 2^256084251029 is an apocalyptic number.

It is an amenable number.

256084251029 is a deficient number, since it is larger than the sum of its proper divisors (1).

256084251029 is an equidigital number, since it uses as much as digits as its factorization.

256084251029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 256084251029 in words is "two hundred fifty-six billion, eighty-four million, two hundred fifty-one thousand, twenty-nine".