523655565556313 has 2 divisors, whose sum is σ = 523655565556314. Its totient is φ = 523655565556312.

The previous prime is 523655565556309. The next prime is 523655565556393. The reversal of 523655565556313 is 313655565556325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467982881599744 + 55672683956569 = 21632912^2 + 7461413^2 .

It is a cyclic number.

It is not a de Polignac number, because 523655565556313 - 2² = 523655565556309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 523655565556313.

It is not a weakly prime, because it can be changed into another prime (523655565556393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261827782778156 + 261827782778157.

It is an arithmetic number, because the mean of its divisors is an integer number (261827782778157).

Almost surely, 2^{523655565556313} is an apocalyptic number.

It is an amenable number.

523655565556313 is a deficient number, since it is larger than the sum of its proper divisors (1).

523655565556313 is an equidigital number, since it uses as much as digits as its factorization.

523655565556313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 911250000, while the sum is 65.

The spelling of 523655565556313 in words is "five hundred twenty-three trillion, six hundred fifty-five billion, five hundred sixty-five million, five hundred fifty-six thousand, three hundred thirteen".