2505522399959 has 2 divisors, whose sum is σ = 2505522399960. Its totient is φ = 2505522399958.

The previous prime is 2505522399929. The next prime is 2505522400049. The reversal of 2505522399959 is 9599932255052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2505522399959 - 2²⁴ = 2505505622743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2505522399895 and 2505522399904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505522399929) 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, 1252761199979 + 1252761199980.

It is an arithmetic number, because the mean of its divisors is an integer number (1252761199980).

Almost surely, 2^{2505522399959} is an apocalyptic number.

2505522399959 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505522399959 is an equidigital number, since it uses as much as digits as its factorization.

2505522399959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98415000, while the sum is 65.

The spelling of 2505522399959 in words is "two trillion, five hundred five billion, five hundred twenty-two million, three hundred ninety-nine thousand, nine hundred fifty-nine".