245550126553 has 2 divisors, whose sum is σ = 245550126554. Its totient is φ = 245550126552.

The previous prime is 245550126541. The next prime is 245550126583. The reversal of 245550126553 is 355621055542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156873029184 + 88677097369 = 396072^2 + 297787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245550126553 is a prime.

It is not a weakly prime, because it can be changed into another prime (245550126583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122775063276 + 122775063277.

It is an arithmetic number, because the mean of its divisors is an integer number (122775063277).

Almost surely, 2^245550126553 is an apocalyptic number.

It is an amenable number.

245550126553 is a deficient number, since it is larger than the sum of its proper divisors (1).

245550126553 is an equidigital number, since it uses as much as digits as its factorization.

245550126553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 245550126553 in words is "two hundred forty-five billion, five hundred fifty million, one hundred twenty-six thousand, five hundred fifty-three".