2520303257 has 2 divisors, whose sum is σ = 2520303258. Its totient is φ = 2520303256.

The previous prime is 2520303199. The next prime is 2520303277. The reversal of 2520303257 is 7523030252.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2255395081 + 264908176 = 47491^2 + 16276^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520303257 - 2⁸ = 2520303001 is a prime.

It is not a weakly prime, because it can be changed into another prime (2520303277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260151628 + 1260151629.

It is an arithmetic number, because the mean of its divisors is an integer number (1260151629).

Almost surely, 2^2520303257 is an apocalyptic number.

It is an amenable number.

2520303257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520303257 is an equidigital number, since it uses as much as digits as its factorization.

2520303257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 2520303257 is about 50202.6220131977. The cubic root of 2520303257 is about 1360.8730080002.

The spelling of 2520303257 in words is "two billion, five hundred twenty million, three hundred three thousand, two hundred fifty-seven".