2545401589 has 2 divisors, whose sum is σ = 2545401590. Its totient is φ = 2545401588.

The previous prime is 2545401571. The next prime is 2545401629. The reversal of 2545401589 is 9851045452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2324879089 + 220522500 = 48217^2 + 14850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545401589 - 2⁹ = 2545401077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2545401539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272700794 + 1272700795.

It is an arithmetic number, because the mean of its divisors is an integer number (1272700795).

Almost surely, 2^2545401589 is an apocalyptic number.

It is an amenable number.

2545401589 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545401589 is an equidigital number, since it uses as much as digits as its factorization.

2545401589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 43.

The square root of 2545401589 is about 50451.9730932300. The cubic root of 2545401589 is about 1365.3754934895.

The spelling of 2545401589 in words is "two billion, five hundred forty-five million, four hundred one thousand, five hundred eighty-nine".