2505242030173 has 2 divisors, whose sum is σ = 2505242030174. Its totient is φ = 2505242030172.

The previous prime is 2505242030149. The next prime is 2505242030227. The reversal of 2505242030173 is 3710302425052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2299159624804 + 206082405369 = 1516298^2 + 453963^2 .

It is a cyclic number.

It is not a de Polignac number, because 2505242030173 - 2¹³ = 2505242021981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505242030113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252621015086 + 1252621015087.

It is an arithmetic number, because the mean of its divisors is an integer number (1252621015087).

Almost surely, 2^{2505242030173} is an apocalyptic number.

It is an amenable number.

2505242030173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505242030173 is an equidigital number, since it uses as much as digits as its factorization.

2505242030173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 34.

It can be divided in two parts, 25052 and 42030173, that added together give a square (42055225 = 6485²).

The spelling of 2505242030173 in words is "two trillion, five hundred five billion, two hundred forty-two million, thirty thousand, one hundred seventy-three".