505755590 has 16 divisors (see below), whose sum is σ = 934965072. Its totient is φ = 196834464.

The previous prime is 505755589. The next prime is 505755619. The reversal of 505755590 is 95557505.

It is a congruent 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, 683084 + ... + 683823.

It is an arithmetic number, because the mean of its divisors is an integer number (58435317).

Almost surely, 2^505755590 is an apocalyptic number.

505755590 is a deficient number, since it is larger than the sum of its proper divisors (429209482).

505755590 is a wasteful number, since it uses less digits than its factorization.

505755590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366951.

The product of its (nonzero) digits is 196875, while the sum is 41.

The square root of 505755590 is about 22489.0104273176. The cubic root of 505755590 is about 796.7343910105.

It can be divided in two parts, 50575 and 5590, that added together give a palindrome (56165).

The spelling of 505755590 in words is "five hundred five million, seven hundred fifty-five thousand, five hundred ninety".