506539469 has 2 divisors, whose sum is σ = 506539470. Its totient is φ = 506539468.

The previous prime is 506539457. The next prime is 506539483. The reversal of 506539469 is 964935605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297390025 + 209149444 = 17245^2 + 14462^2 .

It is a cyclic number.

It is not a de Polignac number, because 506539469 - 2²⁰ = 505490893 is a prime.

It is a super-2 number, since 2×506539469² = 513164467309603922, which contains 22 as substring.

It is a Chen prime.

It is equal to p_26681798 and since 506539469 and 26681798 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506539409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253269734 + 253269735.

It is an arithmetic number, because the mean of its divisors is an integer number (253269735).

Almost surely, 2^506539469 is an apocalyptic number.

It is an amenable number.

506539469 is a deficient number, since it is larger than the sum of its proper divisors (1).

506539469 is an equidigital number, since it uses as much as digits as its factorization.

506539469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 874800, while the sum is 47.

The square root of 506539469 is about 22506.4317251758. The cubic root of 506539469 is about 797.1458024934.

The spelling of 506539469 in words is "five hundred six million, five hundred thirty-nine thousand, four hundred sixty-nine".