2526042721 has 2 divisors, whose sum is σ = 2526042722. Its totient is φ = 2526042720.

The previous prime is 2526042671. The next prime is 2526042731. The reversal of 2526042721 is 1272406252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2523655696 + 2387025 = 50236^2 + 1545^2 .

It is a cyclic number.

It is not a de Polignac number, because 2526042721 - 2⁹ = 2526042209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2526042731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263021360 + 1263021361.

It is an arithmetic number, because the mean of its divisors is an integer number (1263021361).

Almost surely, 2^2526042721 is an apocalyptic number.

It is an amenable number.

2526042721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2526042721 is an equidigital number, since it uses as much as digits as its factorization.

2526042721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 2526042721 is about 50259.7524964061. The cubic root of 2526042721 is about 1361.9052594486.

Adding to 2526042721 its reverse (1272406252), we get a palindrome (3798448973).

The spelling of 2526042721 in words is "two billion, five hundred twenty-six million, forty-two thousand, seven hundred twenty-one".