505553613 has 8 divisors (see below), whose sum is σ = 674190528. Its totient is φ = 336976224.

The previous prime is 505553597. The next prime is 505553641. The reversal of 505553613 is 316355505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505553613 - 2⁴ = 505553597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505553683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11745 + ... + 33897.

It is an arithmetic number, because the mean of its divisors is an integer number (84273816).

Almost surely, 2^505553613 is an apocalyptic number.

It is an amenable number.

505553613 is a deficient number, since it is larger than the sum of its proper divisors (168636915).

505553613 is a wasteful number, since it uses less digits than its factorization.

505553613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29763.

The product of its (nonzero) digits is 33750, while the sum is 33.

The square root of 505553613 is about 22484.5194078059. The cubic root of 505553613 is about 796.6283164218.

The spelling of 505553613 in words is "five hundred five million, five hundred fifty-three thousand, six hundred thirteen".