2526521 has 2 divisors, whose sum is σ = 2526522. Its totient is φ = 2526520.

The previous prime is 2526497. The next prime is 2526529. The reversal of 2526521 is 1256252.

2526521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2524921 + 1600 = 1589^2 + 40^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2526521 is a prime.

It is not a weakly prime, because it can be changed into another prime (2526529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263260 + 1263261.

It is an arithmetic number, because the mean of its divisors is an integer number (1263261).

2^2526521 is an apocalyptic number.

It is an amenable number.

2526521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2526521 is an equidigital number, since it uses as much as digits as its factorization.

2526521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 23.

The square root of 2526521 is about 1589.5033815629. The cubic root of 2526521 is about 136.1991208058.

The spelling of 2526521 in words is "two million, five hundred twenty-six thousand, five hundred twenty-one".