2256336125389 has 2 divisors, whose sum is σ = 2256336125390. Its totient is φ = 2256336125388.

The previous prime is 2256336125369. The next prime is 2256336125419. The reversal of 2256336125389 is 9835216336522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1802172002500 + 454164122889 = 1342450^2 + 673917^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256336125389 - 2¹¹ = 2256336123341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256336125369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128168062694 + 1128168062695.

It is an arithmetic number, because the mean of its divisors is an integer number (1128168062695).

Almost surely, 2^{2256336125389} is an apocalyptic number.

It is an amenable number.

2256336125389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256336125389 is an equidigital number, since it uses as much as digits as its factorization.

2256336125389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13996800, while the sum is 55.

The spelling of 2256336125389 in words is "two trillion, two hundred fifty-six billion, three hundred thirty-six million, one hundred twenty-five thousand, three hundred eighty-nine".