514917123557 has 2 divisors, whose sum is σ = 514917123558. Its totient is φ = 514917123556.

The previous prime is 514917123551. The next prime is 514917123559. The reversal of 514917123557 is 755321719415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377879448961 + 137037674596 = 614719^2 + 370186^2 .

It is a cyclic number.

It is not a de Polignac number, because 514917123557 - 2¹⁶ = 514917058021 is a prime.

Together with 514917123559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514917123551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257458561778 + 257458561779.

It is an arithmetic number, because the mean of its divisors is an integer number (257458561779).

Almost surely, 2^514917123557 is an apocalyptic number.

It is an amenable number.

514917123557 is a deficient number, since it is larger than the sum of its proper divisors (1).

514917123557 is an equidigital number, since it uses as much as digits as its factorization.

514917123557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1323000, while the sum is 50.

The spelling of 514917123557 in words is "five hundred fourteen billion, nine hundred seventeen million, one hundred twenty-three thousand, five hundred fifty-seven".