252777750289 has 2 divisors, whose sum is σ = 252777750290. Its totient is φ = 252777750288.

The previous prime is 252777750271. The next prime is 252777750311. The reversal of 252777750289 is 982057777252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212905647889 + 39872102400 = 461417^2 + 199680^2 .

It is a cyclic number.

It is not a de Polignac number, because 252777750289 - 2⁷ = 252777750161 is a prime.

It is not a weakly prime, because it can be changed into another prime (252777750209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126388875144 + 126388875145.

It is an arithmetic number, because the mean of its divisors is an integer number (126388875145).

Almost surely, 2^252777750289 is an apocalyptic number.

It is an amenable number.

252777750289 is a deficient number, since it is larger than the sum of its proper divisors (1).

252777750289 is an equidigital number, since it uses as much as digits as its factorization.

252777750289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34574400, while the sum is 61.

The spelling of 252777750289 in words is "two hundred fifty-two billion, seven hundred seventy-seven million, seven hundred fifty thousand, two hundred eighty-nine".