252780303247 has 2 divisors, whose sum is σ = 252780303248. Its totient is φ = 252780303246.

The previous prime is 252780303173. The next prime is 252780303277. The reversal of 252780303247 is 742303087252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252780303247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252780303277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126390151623 + 126390151624.

It is an arithmetic number, because the mean of its divisors is an integer number (126390151624).

Almost surely, 2^252780303247 is an apocalyptic number.

252780303247 is a deficient number, since it is larger than the sum of its proper divisors (1).

252780303247 is an equidigital number, since it uses as much as digits as its factorization.

252780303247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 252780303247 in words is "two hundred fifty-two billion, seven hundred eighty million, three hundred three thousand, two hundred forty-seven".