505560549 has 8 divisors (see below), whose sum is σ = 725933152. Its totient is φ = 311114160.

The previous prime is 505560521. The next prime is 505560577. The reversal of 505560549 is 945065505.

It is an interprime number because it is at equal distance from previous prime (505560521) and next prime (505560577).

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

It is not a de Polignac number, because 505560549 - 2¹⁶ = 505495013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 12963091 = 505560549 / (5 + 0 + 5 + 5 + 6 + 0 + 5 + 4 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505560049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6481507 + ... + 6481584.

It is an arithmetic number, because the mean of its divisors is an integer number (90741644).

Almost surely, 2^505560549 is an apocalyptic number.

It is an amenable number.

505560549 is a deficient number, since it is larger than the sum of its proper divisors (220372603).

505560549 is a wasteful number, since it uses less digits than its factorization.

505560549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12963107.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 505560549 is about 22484.6736467310. The cubic root of 505560549 is about 796.6319595492.

The spelling of 505560549 in words is "five hundred five million, five hundred sixty thousand, five hundred forty-nine".