2520769 has 2 divisors, whose sum is σ = 2520770. Its totient is φ = 2520768.

The previous prime is 2520697. The next prime is 2520779. The reversal of 2520769 is 9670252.

2520769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (2520697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2146225 + 374544 = 1465^2 + 612^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520769 - 2⁹ = 2520257 is a prime.

It is a super-2 number, since 2×2520769² = 12708552702722, which contains 22 as substring.

2520769 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2520769.

It is not a weakly prime, because it can be changed into another prime (2520779) 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, 1260384 + 1260385.

It is an arithmetic number, because the mean of its divisors is an integer number (1260385).

2^2520769 is an apocalyptic number.

It is an amenable number.

2520769 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520769 is an equidigital number, since it uses as much as digits as its factorization.

2520769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 2520769 is about 1587.6929803964. The cubic root of 2520769 is about 136.0956830987.

The spelling of 2520769 in words is "two million, five hundred twenty thousand, seven hundred sixty-nine".