523015514235257 has 2 divisors, whose sum is σ = 523015514235258. Its totient is φ = 523015514235256.

The previous prime is 523015514235217. The next prime is 523015514235289. The reversal of 523015514235257 is 752532415510325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514673607043561 + 8341907191696 = 22686419^2 + 2888236^2 .

It is a cyclic number.

It is not a de Polignac number, because 523015514235257 - 2²⁸ = 523015245799801 is a prime.

It is not a weakly prime, because it can be changed into another prime (523015514235217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261507757117628 + 261507757117629.

It is an arithmetic number, because the mean of its divisors is an integer number (261507757117629).

Almost surely, 2^{523015514235257} is an apocalyptic number.

It is an amenable number.

523015514235257 is a deficient number, since it is larger than the sum of its proper divisors (1).

523015514235257 is an equidigital number, since it uses as much as digits as its factorization.

523015514235257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300000, while the sum is 50.

The spelling of 523015514235257 in words is "five hundred twenty-three trillion, fifteen billion, five hundred fourteen million, two hundred thirty-five thousand, two hundred fifty-seven".