253387009709 has 2 divisors, whose sum is σ = 253387009710. Its totient is φ = 253387009708.

The previous prime is 253387009699. The next prime is 253387009783. The reversal of 253387009709 is 907900783352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213545652100 + 39841357609 = 462110^2 + 199603^2 .

It is a cyclic number.

It is not a de Polignac number, because 253387009709 - 2⁸ = 253387009453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253387009409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126693504854 + 126693504855.

It is an arithmetic number, because the mean of its divisors is an integer number (126693504855).

Almost surely, 2^253387009709 is an apocalyptic number.

It is an amenable number.

253387009709 is a deficient number, since it is larger than the sum of its proper divisors (1).

253387009709 is an equidigital number, since it uses as much as digits as its factorization.

253387009709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 253387009709 in words is "two hundred fifty-three billion, three hundred eighty-seven million, nine thousand, seven hundred nine".