510505469 has 2 divisors, whose sum is σ = 510505470. Its totient is φ = 510505468.

The previous prime is 510505421. The next prime is 510505477. The reversal of 510505469 is 964505015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 507961444 + 2544025 = 22538^2 + 1595^2 .

It is a cyclic number.

It is not a de Polignac number, because 510505469 - 2⁸ = 510505213 is a prime.

It is a super-2 number, since 2×510505469² = 521231667757819922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (510525469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255252734 + 255252735.

It is an arithmetic number, because the mean of its divisors is an integer number (255252735).

Almost surely, 2^510505469 is an apocalyptic number.

It is an amenable number.

510505469 is a deficient number, since it is larger than the sum of its proper divisors (1).

510505469 is an equidigital number, since it uses as much as digits as its factorization.

510505469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 510505469 is about 22594.3680814490. The cubic root of 510505469 is about 799.2208398206.

The spelling of 510505469 in words is "five hundred ten million, five hundred five thousand, four hundred sixty-nine".