2550601365209 has 2 divisors, whose sum is σ = 2550601365210. Its totient is φ = 2550601365208.

The previous prime is 2550601365197. The next prime is 2550601365239. The reversal of 2550601365209 is 9025631060552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2368397881600 + 182203483609 = 1538960^2 + 426853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2550601365209 is a prime.

It is a super-2 number, since 2×2550601365209² (a number of 26 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 2550601365209.

It is not a weakly prime, because it can be changed into another prime (2550601365239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275300682604 + 1275300682605.

It is an arithmetic number, because the mean of its divisors is an integer number (1275300682605).

Almost surely, 2^{2550601365209} is an apocalyptic number.

It is an amenable number.

2550601365209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2550601365209 is an equidigital number, since it uses as much as digits as its factorization.

2550601365209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 44.

The spelling of 2550601365209 in words is "two trillion, five hundred fifty billion, six hundred one million, three hundred sixty-five thousand, two hundred nine".