2505503341591 has 2 divisors, whose sum is σ = 2505503341592. Its totient is φ = 2505503341590.

The previous prime is 2505503341577. The next prime is 2505503341597. The reversal of 2505503341591 is 1951433055052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2505503341591 - 2¹¹ = 2505503339543 is a prime.

It is a super-2 number, since 2×2505503341591² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505503341597) 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, 1252751670795 + 1252751670796.

It is an arithmetic number, because the mean of its divisors is an integer number (1252751670796).

Almost surely, 2^{2505503341591} is an apocalyptic number.

2505503341591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505503341591 is an equidigital number, since it uses as much as digits as its factorization.

2505503341591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 2505503341591 in words is "two trillion, five hundred five billion, five hundred three million, three hundred forty-one thousand, five hundred ninety-one".