2540159959 has 2 divisors, whose sum is σ = 2540159960. Its totient is φ = 2540159958.

The previous prime is 2540159929. The next prime is 2540160011. The reversal of 2540159959 is 9599510452.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2540159959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540159929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270079979 + 1270079980.

It is an arithmetic number, because the mean of its divisors is an integer number (1270079980).

Almost surely, 2^2540159959 is an apocalyptic number.

2540159959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540159959 is an equidigital number, since it uses as much as digits as its factorization.

2540159959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729000, while the sum is 49.

The square root of 2540159959 is about 50399.9995932540. Note that the first 3 decimals coincide. The cubic root of 2540159959 is about 1364.4376308277.

The spelling of 2540159959 in words is "two billion, five hundred forty million, one hundred fifty-nine thousand, nine hundred fifty-nine".