505055517 has 16 divisors (see below), whose sum is σ = 687744000. Its totient is φ = 329584304.

The previous prime is 505055501. The next prime is 505055519. The reversal of 505055517 is 715550505.

It is a cyclic number.

It is not a de Polignac number, because 505055517 - 2⁴ = 505055501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505055519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36334 + ... + 48272.

It is an arithmetic number, because the mean of its divisors is an integer number (42984000).

Almost surely, 2^505055517 is an apocalyptic number.

It is an amenable number.

505055517 is a deficient number, since it is larger than the sum of its proper divisors (182688483).

505055517 is a wasteful number, since it uses less digits than its factorization.

505055517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12240.

The product of its (nonzero) digits is 21875, while the sum is 33.

The square root of 505055517 is about 22473.4402573349. The cubic root of 505055517 is about 796.3666048026.

The spelling of 505055517 in words is "five hundred five million, fifty-five thousand, five hundred seventeen".