505655516 has 12 divisors (see below), whose sum is σ = 903725088. Its totient is φ = 247448352.

The previous prime is 505655473. The next prime is 505655543. The reversal of 505655516 is 615556505.

It is a super-2 number, since 2×505655516² = 511375001722452512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 505655516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344641 + ... + 1345016.

It is an arithmetic number, because the mean of its divisors is an integer number (75310424).

Almost surely, 2^505655516 is an apocalyptic number.

It is an amenable number.

505655516 is a deficient number, since it is larger than the sum of its proper divisors (398069572).

505655516 is a wasteful number, since it uses less digits than its factorization.

505655516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689708 (or 2689706 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 38.

The square root of 505655516 is about 22486.7853638531. The cubic root of 505655516 is about 796.6818375252.

The spelling of 505655516 in words is "five hundred five million, six hundred fifty-five thousand, five hundred sixteen".