505240535 has 4 divisors (see below), whose sum is σ = 606288648. Its totient is φ = 404192424.

The previous prime is 505240487. The next prime is 505240579. The reversal of 505240535 is 535042505.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 535042505 = 5 ⋅107008501.

It is a cyclic number.

It is not a de Polignac number, because 505240535 - 2²⁰ = 504191959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505240498 and 505240507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50524049 + ... + 50524058.

It is an arithmetic number, because the mean of its divisors is an integer number (151572162).

Almost surely, 2^505240535 is an apocalyptic number.

505240535 is a deficient number, since it is larger than the sum of its proper divisors (101048113).

505240535 is a wasteful number, since it uses less digits than its factorization.

505240535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101048112.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 505240535 is about 22477.5562506248. The cubic root of 505240535 is about 796.4638377886.

The spelling of 505240535 in words is "five hundred five million, two hundred forty thousand, five hundred thirty-five".