506766523 has 2 divisors, whose sum is σ = 506766524. Its totient is φ = 506766522.

The previous prime is 506766479. The next prime is 506766529. The reversal of 506766523 is 325667605.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506766523 is a prime.

It is not a weakly prime, because it can be changed into another prime (506766529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253383261 + 253383262.

It is an arithmetic number, because the mean of its divisors is an integer number (253383262).

Almost surely, 2^506766523 is an apocalyptic number.

506766523 is a deficient number, since it is larger than the sum of its proper divisors (1).

506766523 is an equidigital number, since it uses as much as digits as its factorization.

506766523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 506766523 is about 22511.4753625790. The cubic root of 506766523 is about 797.2648903549.

The spelling of 506766523 in words is "five hundred six million, seven hundred sixty-six thousand, five hundred twenty-three".