245555045503219 has 2 divisors, whose sum is σ = 245555045503220. Its totient is φ = 245555045503218.

The previous prime is 245555045503199. The next prime is 245555045503241. The reversal of 245555045503219 is 912305540555542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245555045503219 - 2²⁵ = 245555011948787 is a prime.

It is a super-2 number, since 2×245555045503219² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245555045503219.

It is not a weakly prime, because it can be changed into another prime (245555045543219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122777522751609 + 122777522751610.

It is an arithmetic number, because the mean of its divisors is an integer number (122777522751610).

Almost surely, 2^{245555045503219} is an apocalyptic number.

245555045503219 is a deficient number, since it is larger than the sum of its proper divisors (1).

245555045503219 is an equidigital number, since it uses as much as digits as its factorization.

245555045503219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000000, while the sum is 55.

The spelling of 245555045503219 in words is "two hundred forty-five trillion, five hundred fifty-five billion, forty-five million, five hundred three thousand, two hundred nineteen".