2525711011721 has 2 divisors, whose sum is σ = 2525711011722. Its totient is φ = 2525711011720.

The previous prime is 2525711011679. The next prime is 2525711011753. The reversal of 2525711011721 is 1271101175252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1805962387321 + 719748624400 = 1343861^2 + 848380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2525711011721 is a prime.

It is a super-2 number, since 2×2525711011721² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2525711011771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262855505860 + 1262855505861.

It is an arithmetic number, because the mean of its divisors is an integer number (1262855505861).

Almost surely, 2^{2525711011721} is an apocalyptic number.

It is an amenable number.

2525711011721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525711011721 is an equidigital number, since it uses as much as digits as its factorization.

2525711011721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9800, while the sum is 35.

Adding to 2525711011721 its reverse (1271101175252), we get a palindrome (3796812186973).

The spelling of 2525711011721 in words is "two trillion, five hundred twenty-five billion, seven hundred eleven million, eleven thousand, seven hundred twenty-one".