253530443293 has 2 divisors, whose sum is σ = 253530443294. Its totient is φ = 253530443292.

The previous prime is 253530443269. The next prime is 253530443323. The reversal of 253530443293 is 392344035352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151260322084 + 102270121209 = 388922^2 + 319797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253530443293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253530443213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126765221646 + 126765221647.

It is an arithmetic number, because the mean of its divisors is an integer number (126765221647).

Almost surely, 2^253530443293 is an apocalyptic number.

It is an amenable number.

253530443293 is a deficient number, since it is larger than the sum of its proper divisors (1).

253530443293 is an equidigital number, since it uses as much as digits as its factorization.

253530443293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 43.

The spelling of 253530443293 in words is "two hundred fifty-three billion, five hundred thirty million, four hundred forty-three thousand, two hundred ninety-three".