523625363045557 has 2 divisors, whose sum is σ = 523625363045558. Its totient is φ = 523625363045556.

The previous prime is 523625363045537. The next prime is 523625363045621. The reversal of 523625363045557 is 755540363526325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470959702979236 + 52665660066321 = 21701606^2 + 7257111^2 .

It is a cyclic number.

It is not a de Polignac number, because 523625363045557 - 2⁷ = 523625363045429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 523625363045495 and 523625363045504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523625363045527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261812681522778 + 261812681522779.

It is an arithmetic number, because the mean of its divisors is an integer number (261812681522779).

Almost surely, 2^{523625363045557} is an apocalyptic number.

It is an amenable number.

523625363045557 is a deficient number, since it is larger than the sum of its proper divisors (1).

523625363045557 is an equidigital number, since it uses as much as digits as its factorization.

523625363045557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200000, while the sum is 61.

The spelling of 523625363045557 in words is "five hundred twenty-three trillion, six hundred twenty-five billion, three hundred sixty-three million, forty-five thousand, five hundred fifty-seven".