2540772889 has 2 divisors, whose sum is σ = 2540772890. Its totient is φ = 2540772888.

The previous prime is 2540772877. The next prime is 2540772907. The reversal of 2540772889 is 9882770452.

It is a happy number.

2540772889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1872033289 + 668739600 = 43267^2 + 25860^2 .

It is a cyclic number.

It is not a de Polignac number, because 2540772889 - 2¹³ = 2540764697 is a prime.

It is not a weakly prime, because it can be changed into another prime (2540773889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270386444 + 1270386445.

It is an arithmetic number, because the mean of its divisors is an integer number (1270386445).

Almost surely, 2^2540772889 is an apocalyptic number.

It is an amenable number.

2540772889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540772889 is an equidigital number, since it uses as much as digits as its factorization.

2540772889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 2540772889 is about 50406.0798813000. The cubic root of 2540772889 is about 1364.5473663711.

The spelling of 2540772889 in words is "two billion, five hundred forty million, seven hundred seventy-two thousand, eight hundred eighty-nine".