523255738417 has 2 divisors, whose sum is σ = 523255738418. Its totient is φ = 523255738416.

The previous prime is 523255738409. The next prime is 523255738451. The reversal of 523255738417 is 714837552325.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466203549681 + 57052188736 = 682791^2 + 238856^2 .

It is a cyclic number.

It is not a de Polignac number, because 523255738417 - 2³ = 523255738409 is a prime.

It is not a weakly prime, because it can be changed into another prime (523255738717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261627869208 + 261627869209.

It is an arithmetic number, because the mean of its divisors is an integer number (261627869209).

Almost surely, 2^523255738417 is an apocalyptic number.

It is an amenable number.

523255738417 is a deficient number, since it is larger than the sum of its proper divisors (1).

523255738417 is an equidigital number, since it uses as much as digits as its factorization.

523255738417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056000, while the sum is 52.

The spelling of 523255738417 in words is "five hundred twenty-three billion, two hundred fifty-five million, seven hundred thirty-eight thousand, four hundred seventeen".