505545505 has 8 divisors (see below), whose sum is σ = 606863232. Its totient is φ = 404297328.

The previous prime is 505545493. The next prime is 505545511.

505545505 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505545505 - 2⁷ = 505545377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232 + ... + 31798.

It is an arithmetic number, because the mean of its divisors is an integer number (75857904).

Almost surely, 2^505545505 is an apocalyptic number.

It is an amenable number.

505545505 is a deficient number, since it is larger than the sum of its proper divisors (101317727).

505545505 is a wasteful number, since it uses less digits than its factorization.

505545505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34775.

The product of its (nonzero) digits is 62500, while the sum is 34.

The square root of 505545505 is about 22484.3391052528. The cubic root of 505545505 is about 796.6240576602.

The spelling of 505545505 in words is "five hundred five million, five hundred forty-five thousand, five hundred five".