523505107 has 2 divisors, whose sum is σ = 523505108. Its totient is φ = 523505106.

The previous prime is 523505083. The next prime is 523505117. The reversal of 523505107 is 701505325.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523505107 is a prime.

It is not a weakly prime, because it can be changed into another prime (523505117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261752553 + 261752554.

It is an arithmetic number, because the mean of its divisors is an integer number (261752554).

Almost surely, 2^523505107 is an apocalyptic number.

523505107 is a deficient number, since it is larger than the sum of its proper divisors (1).

523505107 is an equidigital number, since it uses as much as digits as its factorization.

523505107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 523505107 is about 22880.2339804470. The cubic root of 523505107 is about 805.9479115687.

The spelling of 523505107 in words is "five hundred twenty-three million, five hundred five thousand, one hundred seven".