557290449 has 45 divisors (see below), whose sum is σ = 866507499. Its totient is φ = 356937840.

The previous prime is 557290403. The next prime is 557290451. The reversal of 557290449 is 944092755.

The square root of 557290449 is 23607.

It is a perfect power (a square), and thus also a powerful number.

557290449 is a `hidden beast` number, since 55 + 72 + 90 + 449 = 666.

557290449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 18122049 + 539168400 = 4257^2 + 23220^2 .

It is not a de Polignac number, because 557290449 - 2¹⁵ = 557257681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (557290649) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 9135879 + ... + 9135939.

Almost surely, 2^557290449 is an apocalyptic number.

557290449 is the 23607-th square number.

557290449 is the 11804-th centered octagonal number.

It is an amenable number.

557290449 is a deficient number, since it is larger than the sum of its proper divisors (309217050).

557290449 is an frugal number, since it uses more digits than its factorization.

557290449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The cubic root of 557290449 is about 822.9255252647.

The spelling of 557290449 in words is "five hundred fifty-seven million, two hundred ninety thousand, four hundred forty-nine".