505769616 has 80 divisors (see below), whose sum is σ = 1583737920. Its totient is φ = 153262080.

The previous prime is 505769597. The next prime is 505769651. The reversal of 505769616 is 616967505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48465 + ... + 57968.

It is an arithmetic number, because the mean of its divisors is an integer number (19796724).

Almost surely, 2^505769616 is an apocalyptic number.

It is an amenable number.

505769616 is an abundant number, since it is smaller than the sum of its proper divisors (1077968304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505769616 is a wasteful number, since it uses less digits than its factorization.

505769616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106461 (or 106449 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 505769616 is about 22489.3222663556. The cubic root of 505769616 is about 796.7417561578.

The spelling of 505769616 in words is "five hundred five million, seven hundred sixty-nine thousand, six hundred sixteen".