2031256589 has 2 divisors, whose sum is σ = 2031256590. Its totient is φ = 2031256588.

The previous prime is 2031256573. The next prime is 2031256613. The reversal of 2031256589 is 9856521302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1432622500 + 598634089 = 37850^2 + 24467^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031256589 - 2⁴ = 2031256573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031256519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015628294 + 1015628295.

It is an arithmetic number, because the mean of its divisors is an integer number (1015628295).

Almost surely, 2^2031256589 is an apocalyptic number.

It is an amenable number.

2031256589 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031256589 is an equidigital number, since it uses as much as digits as its factorization.

2031256589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 2031256589 is about 45069.4640416324. The cubic root of 2031256589 is about 1266.4506241496.

The spelling of 2031256589 in words is "two billion, thirty-one million, two hundred fifty-six thousand, five hundred eighty-nine".