2520770257 has 2 divisors, whose sum is σ = 2520770258. Its totient is φ = 2520770256.

The previous prime is 2520770233. The next prime is 2520770267. The reversal of 2520770257 is 7520770252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2245243456 + 275526801 = 47384^2 + 16599^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520770257 - 2²³ = 2512381649 is a prime.

It is not a weakly prime, because it can be changed into another prime (2520770267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260385128 + 1260385129.

It is an arithmetic number, because the mean of its divisors is an integer number (1260385129).

Almost surely, 2^2520770257 is an apocalyptic number.

It is an amenable number.

2520770257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520770257 is an equidigital number, since it uses as much as digits as its factorization.

2520770257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 2520770257 is about 50207.2729492451. The cubic root of 2520770257 is about 1360.9570572039.

The spelling of 2520770257 in words is "two billion, five hundred twenty million, seven hundred seventy thousand, two hundred fifty-seven".