505513340 has 24 divisors (see below), whose sum is σ = 1069942272. Its totient is φ = 200612160.

The previous prime is 505513339. The next prime is 505513361. The reversal of 505513340 is 43315505.

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, 96971 + ... + 102050.

It is an arithmetic number, because the mean of its divisors is an integer number (44580928).

Almost surely, 2^505513340 is an apocalyptic number.

It is an amenable number.

505513340 is an abundant number, since it is smaller than the sum of its proper divisors (564428932).

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

505513340 is a wasteful number, since it uses less digits than its factorization.

505513340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199157 (or 199155 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 505513340 is about 22483.6238182371. The cubic root of 505513340 is about 796.6071624081.

Adding to 505513340 its reverse (43315505), we get a palindrome (548828845).

The spelling of 505513340 in words is "five hundred five million, five hundred thirteen thousand, three hundred forty".