2520338257 has 2 divisors, whose sum is σ = 2520338258. Its totient is φ = 2520338256.

The previous prime is 2520338237. The next prime is 2520338291. The reversal of 2520338257 is 7528330252.

It is a happy number.

2520338257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2216149776 + 304188481 = 47076^2 + 17441^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520338257 - 2¹⁹ = 2519813969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2520338237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260169128 + 1260169129.

It is an arithmetic number, because the mean of its divisors is an integer number (1260169129).

Almost surely, 2^2520338257 is an apocalyptic number.

It is an amenable number.

2520338257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520338257 is an equidigital number, since it uses as much as digits as its factorization.

2520338257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 2520338257 is about 50202.9705993580. The cubic root of 2520338257 is about 1360.8793075509.

The spelling of 2520338257 in words is "two billion, five hundred twenty million, three hundred thirty-eight thousand, two hundred fifty-seven".