245552550425251 has 2 divisors, whose sum is σ = 245552550425252. Its totient is φ = 245552550425250.

The previous prime is 245552550425243. The next prime is 245552550425267. The reversal of 245552550425251 is 152524055255542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245552550425251 - 2³ = 245552550425243 is a prime.

It is not a weakly prime, because it can be changed into another prime (245552550425201) 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, 122776275212625 + 122776275212626.

It is an arithmetic number, because the mean of its divisors is an integer number (122776275212626).

Almost surely, 2^{245552550425251} is an apocalyptic number.

245552550425251 is a deficient number, since it is larger than the sum of its proper divisors (1).

245552550425251 is an equidigital number, since it uses as much as digits as its factorization.

245552550425251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20000000, while the sum is 52.

The spelling of 245552550425251 in words is "two hundred forty-five trillion, five hundred fifty-two billion, five hundred fifty million, four hundred twenty-five thousand, two hundred fifty-one".