557316649 has 8 divisors (see below), whose sum is σ = 573027840. Its totient is φ = 541706400.

The previous prime is 557316637. The next prime is 557316707. The reversal of 557316649 is 946613755.

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

It is a cyclic number.

It is not a de Polignac number, because 557316649 - 2¹⁹ = 556792361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 557316599 and 557316608.

It is not an unprimeable number, because it can be changed into a prime (557316619) 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, 13969 + ... + 36190.

It is an arithmetic number, because the mean of its divisors is an integer number (71628480).

Almost surely, 2^557316649 is an apocalyptic number.

It is an amenable number.

557316649 is a deficient number, since it is larger than the sum of its proper divisors (15711191).

557316649 is a wasteful number, since it uses less digits than its factorization.

557316649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50471.

The product of its digits is 680400, while the sum is 46.

The square root of 557316649 is about 23607.5549136288. The cubic root of 557316649 is about 822.9384211798.

It can be divided in two parts, 5573 and 16649, that added together give a palindrome (22222).

The spelling of 557316649 in words is "five hundred fifty-seven million, three hundred sixteen thousand, six hundred forty-nine".