2520785017 has 2 divisors, whose sum is σ = 2520785018. Its totient is φ = 2520785016.

The previous prime is 2520784997. The next prime is 2520785021. The reversal of 2520785017 is 7105870252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2012778496 + 508006521 = 44864^2 + 22539^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520785017 - 2²⁷ = 2386567289 is a prime.

It is not a weakly prime, because it can be changed into another prime (2520785077) 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, 1260392508 + 1260392509.

It is an arithmetic number, because the mean of its divisors is an integer number (1260392509).

Almost surely, 2^2520785017 is an apocalyptic number.

It is an amenable number.

2520785017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520785017 is an equidigital number, since it uses as much as digits as its factorization.

2520785017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 2520785017 is about 50207.4199396862. The cubic root of 2520785017 is about 1360.9597134934.

It can be divided in two parts, 25207 and 85017, that added together give a square (110224 = 332²).

The spelling of 2520785017 in words is "two billion, five hundred twenty million, seven hundred eighty-five thousand, seventeen".