245988105653 has 2 divisors, whose sum is σ = 245988105654. Its totient is φ = 245988105652.

The previous prime is 245988105641. The next prime is 245988105691. The reversal of 245988105653 is 356501889542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172504823569 + 73483282084 = 415337^2 + 271078^2 .

It is a cyclic number.

It is not a de Polignac number, because 245988105653 - 2⁶ = 245988105589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245988105553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122994052826 + 122994052827.

It is an arithmetic number, because the mean of its divisors is an integer number (122994052827).

Almost surely, 2^245988105653 is an apocalyptic number.

It is an amenable number.

245988105653 is a deficient number, since it is larger than the sum of its proper divisors (1).

245988105653 is an equidigital number, since it uses as much as digits as its factorization.

245988105653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368000, while the sum is 56.

The spelling of 245988105653 in words is "two hundred forty-five billion, nine hundred eighty-eight million, one hundred five thousand, six hundred fifty-three".